Train (Teurein / 트레인)

[ All characters, organizations, places, and events are fictional. ]

[ So on all the days when it rained, this same train was running? ]

[ We all live a backup life simultaneously. ]

[ The case from 12 years ago and the corpses found here too. ]

[ That's if you don't want to lose what's precious to you again. ]

[ It's been more than ten years, but the pain is still suffocating. ]

I want to kill that woman.

[ The murderer's son and the victim's daughter. ]

You said that was our start, right?

Looking at how stiff she is, she died at least three hours ago.

Kim Jin-woo can't be the murderer when we think of the estimated time of death.

If the injuries are this excessive,

I wonder if she had any other enemies aside from Kim Jin-woo.

It's not a simple murder.

They strangled her to suffocate her to death.

Then, they struck her head. On purpose.

Do you remember? There was a case 12 years ago that used the same method.

Mugyeong Station Residential Murder Case.

Same method, same signature.

It's a serial murder caused by the same criminal.

Because the one that was arrested back then wasn't the real criminal.

What are you talking about?

Are you saying your father was framed?

Six other victims were killed the same way

while Father was behind bars.

Why are you only telling me this now?

The situation changed.

This is the first time

that murderer

left a body here.

The train broke down,

and the passageway is blocked.

Here's the victim's phone.

- Okay. Contact their family. - Okay.

Why does the victim have your number?

How on earth did this...

Can we talk?

I explained everything to you already.

Victim Cho Young-ran was a woman my dad remarried.

I only called her after I found out she's Kim Jin-woo's target.

I only lived with her until high school.

We didn't keep in contact,

- nor do I know anything about her... - Wasn't it hard

living with her?

Maybe you heard

what she was like while investigating Kim Jin-woo's case,

but haven't you thought about who made me live with her

after losing my dad?

The necklace that was on Cho Young-ran used to belong to your mother, right?

It's one of the accessories that disappeared from the scene 12 years ago.

Do you remember what I said?

I told you I'd prove

that our start isn't as the murderer's son

and the victim's daughter.

The true criminal is someone else.

They're killing people the same way they killed your father,

and are leaving behind the jewelry they stole 12 years ago on the victims.

That's their signature.

Lee Jin-sung was killed because he saw the real murderer.

It was also the same person who abducted and killed Jung Kyung-hye.

Aside from them,

there are more missing people he killed.

I saw

those corpses with my own eyes.

If you're trying to bring up the impossible possibility

of a serial missing case or a serial murder case...

Then how did a necklace that disappeared 12 years ago

be at the crime scene?

The one who killed Cho Young-ran and left behind the necklace

is the true criminal who murdered your father.

The day Kim Jin-woo witnessed it.

I don't know. I can't recall.

Tell me properly.

What did you see in the alley the day Jung Kyung-hye went missing?

By the way,

even if I saw something,

why should I tell you?

For your benefit?

Like you said, if the one who killed that lady

also killed Cho Young-ran,

shouldn't I be thanking him?

It makes me so mad that I couldn't kill her myself.

It's time for me to go check the warrant's validity.

If you have more to say, come to the detention center.

Killing someone is a crime,

- but it's not difficult at all. - What?

Should I show you?

A person can suddenly die from a single blow,

and they can die from a minute of strangling.

In just 30 seconds, you'll die.

You crazy freak.

The really hard thing is

living with the weight of taking someone else's life.

I've lived that way.

"A murderer's blood flows through my veins."

"If I die,"

"if all of my blood dries up, will that sin"

be washed away?

I struggled for a very long time.

I wanted you

not to live with that torment.

Will you return to living in a world where you murder people?

Or will you live in a world where you save people?

The choice is yours

from this moment forth.

Why did you go to your father's columbarium?

You should've gone with me.

Did you bring what I asked for?

Why do you want to see your father's case file?

I saw the date he passed in his niche.

Is that really the date he passed away?

April 8, 2008?

It's that day

in front of that house.

[ 528-2, Gyeongmu-dong, Songin-gu, Mugyeong ]

What?

I saw

that car.

Father?

Hey.

Two incidents occurred at the same time,

the same place, and in the same alley.

One was murder, the other was a hit-and-run.

Neither of the perpetrators was caught.

Could that be

a coincidence?

He's the real killer.

He hit my father while fleeing the crime scene.

We must find that car.

[ Will you return to living in a world where you murder people? ]

[ Or will you live in a world where you save people? ]

Hurry up and get in.

We checked the camera by Cho Young-ran's front door,

and the hard drive was destroyed.

I think Kim Jin-woo broke it in advance.

There were no signs of a break-in,

but many people came and went recently because of renovations.

Did you look into Cho Young-ran?

Yes. She has an unusual background as you said.

Her late husband...

So, Lieutenant Han's father had a life insurance policy

that paid out a large sum.

She used that money to invest,

and she must've had a good eye.

The area the house her husband left her was redeveloped, so she made money.

She became interested in that field and started a business.

Why don't you ask Lieutenant Han directly?

It can't be a fond memory for her.

What about her son? She should have a son.

Is he in a facility?

I spoke to him. He said he'll come here.

I saw him.

What?

The guy I saw on that side street.

The one who abducted Ms. Jung.

Here's the victim's son.

I'm Woo Jae-hyuk. We spoke on the phone.

Danger, mirror, signal, stop. A train will come.

She died of asphyxiation?

Not a skull fracture.

There were broken capillaries in the eyelids

and blood in the neck.

He strangled her and killed her

and then struck her on the dead.

The murder weapon appears to be something blunt with a 6 to 7cm diameter.

She was struck from the right going left.

Which means he's probably right-handed.

It looks like a thin chain was used to strangle her.

Maybe like a necklace.

Was the necklace used to strangle her

this?

No, it wasn't this necklace.

Considering the wound on her skin,

it's a chain about 0.5cm thick.

This is too thin.