(Train)
(This drama is fictitious and names, places, organizations, incidents,)
(entities and jobs are unrelated to real life.)
(Mukyeong Station)
Lee Sung Wook hurt his head in an accident.
It means this case might've been committed...
by someone who isn't mentally sane.
(Contacts)
(Do Won)
(Seo Kyung)
The person you have reached is not...
(Do Won)
(Seo Kyung)
(Call history)
(Seo Kyung)
(Do Won)
- Hello? - Mr. Seo,
Lee Sung Wook is not home.
His mother doesn't know where he is.
Shall we wait here for a bit?
No. Come to Mukyeong Station.
And call the Regional Investigation Unit.
I think the fifth victim...
is inside the station.
Okay.
(Okchun Candy)
You...
saw everything, didn't you?
It was you, wasn't it?
That woman and the other bodies.
Did you kill them?
Tell me. You killed them, didn't you?
Seo Kyung!
It was you.
Han Seo Kyung!
A gunshot.
- Find them. - Okay.
Seo Kyung.
Move, Do Won!
It was him.
Lee Sung Wook was the one who killed my dad.
Why did you do it?
What did my dad do to you?
Han Kyu Tae, my dad!
You killed him.
No. Who is Han Kyu Tae?
You hurt your head.
Did you lose your memory too?
So what?
Did you live in peace?
Never for a single day...
could I forget how my dad died.
You forgot everything you did...
and slept in peace all this time?
I will kill you.
I'll kill you with my own hands.
It wasn't him.
- Seo Kyung. - His fifth victim.
She has strangulation marks.
Just like my dad.
It's not the same killer.
It can't be.
The culprit who killed your father...
already died 12 years ago.
(Forensics)
That night, the culprit...
died in an accident...
after killing your father...
as he was running away.
What are you talking about?
How do you know that?
He was...
my father.
Father.
Dad...
It was my father.
He was the one who killed your father 12 years ago.
My father did it.
My father who died in a hit-and-run accident that night.
It was my father.
I don't understand...
what you're telling me.
I can't process it at all.
Do you really not get what I'm telling you?
The reason I stayed with you.
And the reason I had to leave you.
This is...
the real reason behind that.
(Train)
(Episode 2)
Get in.
Go.
(Forensics)
It looks like she has been dead for a while,
but luckily, her body didn't decompose as much.
I'll be able to identify the body quickly once I run her fingerprints.
She has the same head injury like the other skeletons.
But I found signs of asphyxiation.
(Restricted area, Do not enter)
Mr. Seo?
Mr. Seo, are you all right?
Look at this, sir.
A bullet was fired in the warehouse.
Say you're sorry...
for telling me such an absurd lie.
Tell me you're sorry.
Just tell me that you hated and were annoyed...
that I clung onto you and wouldn't let go.
You know that you shouldn't tell such a lie,
so please tell me you're sorry.
Do you remember the gold necklace?
The murder weapon that disappeared from the crime scene?
It was your late mother's necklace.
That necklace...
was in my father's belongings.
Do you get it now?
Why the culprit of the Mukyeong Station Case...
couldn't have killed your father?
And the man who must face the punishment...
already died a long time ago.
Other than me, who has been deceiving you all this time.
Did that happen when you were trying to arrest the suspect?
I'll talk to the higher-ups later.
A while ago, a suspect of the Serial Murder Case who abandoned...
corpses at Mukyeong Station was arrested.
I'm in front of Mukyeong Station where the suspect is now.
Initially, only four skeletons were found at the station.
But while arresting the suspect,
the police found a corpse of the fifth victim.
The police will...
focus on identifying the victims first.
Meanwhile, Lee...
who was arrested at Mukyeong Station where the bodies were abandoned...
has a Grade Two Intellectual Disability.
It seems the police will have a hard time interrogating the suspect.
Well, he's...
Lee Sung Wook has been arrested...
for murder and abandonment of corpses at Mukyeong Station.
All right. Search every corner of the hair salon and the house.
- Yes, sir. - Yes, sir.
- Wait. - Excuse me.
What are you doing?
- Don't go in. - No. He didn't do it.
He didn't do it!
I'm telling you! He really didn't do it!
And the man who must face the punishment...
already died a long time ago.
Other than me, who has been deceiving you all this time.
Did you find any other evidence besides the suspect's fingerprint?
The NFS called.
They detected semen in the fifth victim's underwear.
We're comparing it with the suspect's DNA now.
And we're trying to identify the victim now.
I heard the suspect is disabled.
Make sure you strictly follow the protocol when interrogating,
so no one can challenge it later.
Yes, ma'am.
Ms. Oh.
I told Seo Kyung...
everything.
This was planned from the get-go.
And I knew what was coming.
She'll probably go to you.
You have nothing to do with this, okay?
- Do Won. - Everything was my decision.
I made the decisions.
I decided to hide my father's crime...
and to stay by her side.
So...
I'll face the consequence too.
If I hadn't been the detective who took the case,
I wonder if things would have been any different.
I drove you guys...
to the brink of ruin.
It's not your fault.
It's because...
my father...
and I are selfish.
(Mukyeong Residential Murder)
(Director of Detective Division, Oh Mi Sook)
Seo Kyung.
I just heard something crazy.
And I keep finding myself...
thinking of something that's even crazier.
Apparently, the person who murdered my dad...
was Do Won's father.
You didn't know, did you?
There's no way...
you would've known the truth and lied to me about it.
Right?
Come inside.
I have something to return to you.
My mom's necklace.
How do you have this?
Do Won brought that to me...
after his father's funeral.
But I stopped him, Seo Kyung.
I told him to keep it to himself.
Why?
Why did you do that?
Because...
I cared for him too much.
He was only 10 years old.
But he was always busy trying to make money...
so he could earn enough money to help his dad settle.
His dad was a severe alcoholic.
His daily routine was to visit police stations so he could...
get his dad out of lockup.
And then,
your father's case happened.
His father, the murderer, was already dead.
And it was going to be a closed case.
But I couldn't bear to see him live the rest of his life...
as a murderer's son.
Then what about me?
How could you say that to me?
I just wanted to know who killed my dad.
Because of that, I couldn't let go of my dad's death for over 10 years.
I thought of that day over and over again.
That's how I lived my life.
And you were always near me to witness that.
Why didn't you stop Do Won until the very end?
You should've stopped him so we wouldn't end up like this.
When he first brought me here,
you should've told me to leave.
The reason Do Won kept quiet about his dad's sin...
was because he wanted to bring you home.
He couldn't...
just let you stay there.
Never! I won't do it again.
I promise you. No, I swear!
If you lay a finger on her again, I'll kill you.
I'll kill you and your mom if I have to!
If you get what I mean, you'd better not show up again.
Let's go.
All my life, I thought...
my dad's last gift for me...
was you and Do Won.
Because you guys were the only ones who helped me...
after I was left all by myself.
You guys were my family.
You guys were my reason for living.
I...
really don't know what to say to you.
But Seo Kyung.
Do Won...
devoted his life to you.
He thought that was the only way for him...
to repay you for his father's sin.
Don't you get it?
That's exactly why I can't forgive him.
The detective told me it's okay for you to live here.
She's going to do her best to help make you feel at home.
So don't worry about anything else...
- What's the matter? - I feel so grateful.
And I feel sorry at the same time.
I don't know if it's okay for me to accept your offer like this.
But I really don't have any other choice.
I really don't want to go back to my stepmother's house.
You won't ever have to go back.
I promise.
Aren't you on duty tonight?
The light bulb on the rooftop burned out.
I thought you might get scared because it's dark.
You came all the way here to tell me that?
You dummy. You could've just called.
I also cooked you some food.
Don't sleep too late.
If anything happens, call me. I'll come right away.
Hey.
Do Won, your watch broke.
It happened during a drunk driving bust yesterday.
Then why are you still wearing it?
You bought it for me.
I'm already upset that you got hurt a few days ago.
I'm okay.
If it weren't for me,
you would've gone to the National Police University...
instead of becoming a patrol officer.
You just wait. I promise I'll pay you back.
What?
Once I pass the test, I'll pay you back tenfold...
No, a hundredfold for all that you've done for me.
You don't need to do that. Don't overwork yourself.
My gosh.
(Call history)
(Do Won)
Darn it.
I'm worried for them both,
but don't have the guts to face them.
It's just insane.
Jung Min, we finished analysing these.
They were found with the victims.
We should return them to their families,
but we only managed to identify the last victim.
Give them to the police.
Okay.
You'll take them yourself, right?
- What? - You're usually the one to...
take things to Mukyeong Police Station.
My gosh.
When did I do that?
All the time.
I'll pass this time. You go.
Okay, then.
Wait.
Why is there only one earring?
Oh, that. We found that by one of the skeletons.
There was only one when we found it.
Danger.
Mirror.
Traffic lights.
Stop.
And Bukgyrungru.
Lee Sung Wook.
You clearly knew where...
the five bodies were.
Do you admit to that?
- Detective. - Do you admit to it?
When you apprehended him yesterday,
I heard that you assaulted him as well.
You're not questioning an ordinary or average man.
If you question him in person,
he could feel intimidated, and an accurate statement...
Feel intimidated?
- Listen carefully. - Detective.
The only reason you're still alive...
is because nothing happened to Seo Kyung.
If something had happened,
I would've killed you myself.
You can come back later.
It's fine.
How many times does it take...
to get used to seeing dead bodies?
In my case, I never got used to it, however many I saw.
I guess.
Yesterday, even Mr. Seo was out of sorts.
You know that...
Mr. Seo never even blinks when looking for a dismembered body part.
But yesterday,
he looked so pale.
I'd never seen him like that.
- Do you have her identity? - Yes.
Her name is Lee Ji Young. She was 26 years old.
(Naero Industries)
Did you contact her family?
Well, she has just one grandmother,
but she has dementia and is in a nursing home.
That's actually a relief.
Rather than knowing an only relative was murdered so viciously,
it might be better to not know anything.
Your prints were found on the bags the bodies were in.
Who are they?
When and how did you meet them?
You know her.
You hid her in the storage room.
I don't know.
You saw her before!
When and how did you first meet?
A train.
A train comes.
Chug-chug, puff-puff. Chug-chug, puff-puff.
Mr. Seo, Lee Sung Wook's mother is here.
I think you should see her.
Let her in.
Mom.
The Mukyeong Station bodies.
My son didn't do it.
The first person to find the body in a bag...
was me.
Based on the initial autopsy, time of death is about 10 days ago.
Cause of death is asphyxiation due to compression of the neck.
To be exact,
she was strangled.
Then what about the head wound?
The case you mentioned last time, Ms. Han.
The Mukyeong Residential Murder.
I didn't know when I had only seen skeletons,
but the recent victim...
made me think the MO is similar for both.
The killer strangled the victim to death,
then bashed in the head.
Not just a few times,
but enough to cause comminuted fractures in a wide area.
If you don't mind,
may I have another look at the case file?
No.
You don't have to worry about that case anymore.
Did you run a comparison with the suspect's DNA?
Was it three years ago?
It was raining, so I was coming back from picking up Sung Wook...
from the community welfare center.
Who left something like that here?
Hold this.
No. I'm going home.
It was left on the train track.
She was already dead.
Sung Wook's prints were found on the other suitcases too.
He also knew...
exactly where the other bodies were.
Because...
he buried them.
After he hurt his head,
he got scared and had fits whenever he saw something dead.
I don't know why.
Doctors said something about a delusional disorder.
I don't understand what that meant,
but he buried any dead dogs or cats he found.
I found out only later that...
he'd buried the bags too.
You found dead bodies...
and knew your son buried them,
but you feigned ignorance until now?
Just to hide that...
you'd stolen an earring?
I didn't mean to steal it.
It's just that...
Things got way out of hand.
I really had no idea...
that there were more suitcases with bodies inside,
and that Sung Wook had buried them.
(Kim Jin Woo)
Do you believe me?
- He may be big, but he's timid. - Mr. Seo.
- I just left the autopsy room. - He has always been that way.
We got the DNA results.
It's not a match.
He doesn't have the guts to kill anyone.
(Multiple discrepancies)
I'll be going, then.
Lee Sung Wook's mother...
gave a statement saying she saw the dead bodies.
Everyone seems to be confused.
She saw the dead bodies?
Yes.
She stole an earring from one of the bodies,
so she didn't report it or something.
The DNA is not a match, so it's all getting worse.
Goodbye, then.
An earring?
This was in the bag with the body.
This is what Lee Sung Wook's mother,
Jo Young Ran, took.
They're definitely a pair.
She must've been wearing both when she was killed.
One fell off while the body was being transported.
Jo Young Ran took the other one.
Do you think she's telling the truth?
If either Lee Sung Wook or Jo Young Ran killed them,
there's no reason to take just one earring.
Did you find anything at their house?
Nothing we suspect that can prove murder.
Forensics found not a single drop of blood.
We didn't find anything that could've been the murder weapon.
The NFS' psychological test says the same.
He clearly denies killing anyone,
but he consistently admits to burying the suitcases.
So according to their tests,
his statement is reliable.
Gosh. Our only suspect buried the bodies but didn't harm anyone.
But...
Why do you think...
Lee Sung Wook buried the bodies?
There's something more important...
than why a mentally disabled man buried those bodies.
That is, what kind of crazy jerk...
is leaving bodies at the station for us to find.
The bigger problem is...
that we are...
not even close to figuring out who the culprit is.
(Mukyeong Station)
All of the five corpses were put inside suitcases...
and abandoned at the station.
The culprit put the bodies in the suitcases...
probably to transport them.
How did the culprit come all the way here?
The wheels look way too clean for the culprit to have walked here.
A car.
If he drove here, that defeats the purpose of putting the bodies...
in the suitcases to dump them in a remote place like this.
The culprit had to put the bodies in suitcases to avoid attention.
A means of transportation...
where he wouldn't look out of place even with a big suitcase.
A train?
You told me about my medication's side effects before.
Commonly, you may experience ringing in the ears or dizziness.
Do the side effects include auditory...
and visual hallucinations?
It's not common, but it's possible.
What a relief.
I'd rather experience side effects than to go crazy.
It may be dangerous to take stimulants for this long.
Workaholism.
When people hear the word, workaholism,
they don't think it's dangerous.
However, if your obsession with work...
could endanger your life,
you have a severe case of it.
I recommend therapy along with taking the medication.
What if it's the other way around?
Will talking to someone still help?
It's not that I'm risking my life because I'm a workaholic.
What if I have to throw myself to work to survive?
Will counselling help?
Thank you.
I'll try to cut down on my medication.
You know what? Lee Ji Young had bad credit.
I can't find any of her phone records or her finances.
Do you think we can trace her whereabouts?
For now, she's the only victim...
whose identity and time of death are confirmed.
We can't even find out where she lived.
We should try everything we can.
I'm not sure. I haven't seen her for a while.
I did think that it was about time she'd come to see her grandma.
Then, when was the last time you saw Ms. Lee Ji Young?
Was it about two months ago?
But why are you asking about her? Did something happen to her?
Ms. Lee Ji Young was murdered 10 days ago.
Oh, my.
Why? Who killed her?
We're investigating the case now.
By the way, how is her grandmother?
Do you think she remembers anything about her granddaughter?
Gosh, she doesn't even remember her name.
How would she remember her granddaughter?
That poor old woman.
Her granddaughter was the only family she had.
Hold on.
Then, who wired me my monthly pay?
Someone wired you money? When?
Look at this. Someone wired me the money two days ago.
(ATM Wire Transfer, Lee Ji Young)
Yes, Mr. Seo. I looked into the bank where the transfer was made.
Cash was wired through an ATM at a convenience store.
Yes. I'll send you the address now.
Who wired the caregiver's pay under Lee Ji Young's name?
The one who has to hide the fact that she was dead.
(Protect Together for a Safe Mukyeong)
(April 15, 2020, Seo Do Won)
(Evidence Box: Jewellery)
(Photos of Stolen Goods)
How did these earrings...
It will be hard to identify her.
Hold on.
(Mukyeong Police Station)
- What brings you here? - I need to ask you a question.
Was the necklace the only thing...
your father had?
What do you mean by that?
On the day of the murder,
all the jewellery disappeared from the jewellery box.
And the necklace which was the murder weapon...
was inside the box too.
So what?
It would only make sense...
for your father to have all the missing jewellery...
if he was indeed the culprit.
That night,
I got a call from your father.
He called me on my dad's phone.
My dad went to your house...
- for a repair job that afternoon. - He left his phone there?
He told me my dad had left his phone at your house.
Okay.
- Okay. - After getting the call,
I went looking for my dad.
On rainy days,
he always got drunk and caused trouble.
And I found my dad had been in a hit-and-run accident.
At that point, my dad...
had his phone with him.
He was running away in the rain.
So he could have dropped the jewellery or hid it somewhere.
But I don't know exactly.
But what I do know...
is that my dad went to your house...
around the time of the crime.
There were no signs of forced entry to your house.
He was there completely drunk.
This is the truth, Seo Kyung.
This is the truth...
without any cover ups or what-ifs.
So you should...
never forgive me.
Let me ask you one more thing.
I want to know why you stayed by my side.
Was it ever love,
even for...
a single moment?
I only wished for one thing while I stayed by your side.
"I wish my dad..."
"didn't die that day."
"I wish he stayed alive and paid for what he did."
I always felt like I was indebted to you.
I always felt so guilty.
And I always...
wanted to break free from that.
So just leave me alone.
I beg you.
I thought you threw this away.
But you still had it with you.
Let's talk again next time.
And when we do,
I hope you'll tell me the truth.
(Mukyeong Police Station)
(Statement Recording Room)
What are you doing?
Rain... Rain...
Rain...
I'm the prosecutor in charge of this case.
I'd like to talk to him for a moment.
Pardon?
- No, wait. Ma'am, wait. - Rain...
Do Won's father couldn't have killed my dad.
If he were the murderer, it's impossible for the victims...
that were found in Mukyeong Station to be wearing my mom's jewellery...
because Do Won's father is already dead.
Your mom lied...
about everything, didn't she?
It was you, wasn't it?
You're the culprit, aren't you?
Tell me.
It was you, wasn't it? You killed my dad, didn't you?
The train is coming.
The train.
Chug-chug, puff-puff. Chug-chug, puff-puff.
The train.
Lee Sung Wook.
It can't be you either.
Rain.
Mukyeong Station.
The train is coming.
A dead body.
The train is coming.
The person comes on a train.
Open the door, ma'am.
- Prosecutor. - What's going on?
Thank you.
Seo Kyung.
It wasn't Do Won's father, Ms. Oh.
What?
There's someone else.
That person killed my dad...
and abandoned the bodies...
at Mukyeong Station.
What do you mean?
I'll let you know once I'm sure of everything.
Didn't you say the coffee cup was thrown away a few days ago?
Yes, two days ago.
Did it get contaminated or something?
This is impossible.
(Seo Kyung)
(Name: Lee Ji Young)
"Lee Ji Young"?
But she's dead.
Exactly.
How can the fingerprints...
of a dead person be found on a cup that was thrown away two days ago?
Hello, I'm Lee Ji Young.
(Mukyeong Station)
(Notice: Do not trespass after May 3, 2015...)
"A train"? That's nonsense.
(From Seoul to Mukyeong, February 14, 2020)
(Notice: Do not trespass after May 3, 2015...)
"2020"?
(From Seoul to Mukyeong, February 14, 2020)
What's going on?
Did you just say...
you're Lee Ji Young?
Here.
(ID Card, Name: Lee Ji Young)
I went to my grandma's hospital.
And the caregiver told me that a few detectives were there.
By the way,
why did they tell her I'm dead?
No way.
The train is coming.
Mukyeong Station. Train.
Bag. Dead body.
This station is the last stop on this line,
Mukyeong Station.
The train will stop briefly before...
pulling into Mukyeong Station.
Those who wish to get off, please wait until...
the train makes a complete stop at the station.
(Mukyeong Station)
- It's me. - I was just about to call you.
Look up Lee Ji Young's birth record, OBGYN records, everything, quick.
See if she has a twin.
Just a moment.
We found prints on the cup.
They're Lee Ji Young's.
- What? - We checked multiple times,
and they're definitely hers.
DNA maybe, but no one has the same fingerprints.
Even if they're identical twins.
How did a dead woman's prints get on it?
We have no idea.
(Mukyeong Station)
I'm sure that no one went into the station.
But...
A female prosecutor did go in earlier.
(Seo Kyung)
Seo Kyung.
Seo...
Seo Kyung.
Seo Kyung. Seo Kyung.
Seo Kyung.
Seo Kyung!
(Train)
If that day, my father hadn't been killed,
and if Seo Kyung and I didn't meet,
would she still...
be here?
It wasn't your father. It was him.
The man who killed Seo Kyung's father...
did this to her too?
Something's not right.
He died. Three years ago, of cancer.
I was wrong about everything from the start.
You're not doing this for Seo Kyung.
You're hurting yourself to run away.
Seo Kyung.