Mouse (마우스)

Darn it. I needed an offspring.

A Han Seo Joon Junior.

What if that boy turns out to be like Han Seo Joon?

No. You can't!

You decided...

to have yours.

I'm scared.

I saw a monster.

What if...

my own child...

turns out like him?

Look who it is.

Where is she?

Tell me!

Who?

That detective has your grandchild.

He'll kill him if he doesn't get his daughter back.

Where is she? Tell me this instant!

Grandchild?

How can I have a grandchild?

I thought you had killed Blessing.

You said you did right after it was born.

I'm sorry.

I was wrong to lie.

But please... He threatened to kill Yo Han's child!

Let him do as he wants.

He can kill off the child for all I care.

Don't be like that. Please don't.

Please...

Just tell me where she is.

He's your blood.

My blood?

I have no ties to him.

What?

The whole world is praying for him. Please save...

Mr. Jung's life.

I see that my hands are starting to go rigid.

It's the music I frequently played...

while Blessing was in the womb.

I should look into this.

Tell the warden that I changed my mind.

Please wait here.

I'm sorry, Yo Han.

I can't even fathom the betrayal you felt.

I'm sorry for letting you grow up as that monster's son.

If only I hadn't done such a thing.

You and your family...

would've lived a happy life.

You dared to deceive me?

A worthless cow like you?

Jung Ba Reum.

I should've killed him with my own hands.

How could I have felt guilt for that monster?

I must've been out of my mind.

I knew it. It was Jung Ba Reum all along.

Then, of course, I should save his life.

He's Han Seo Joon Junior, after all.

I need an active brain.

An active brain? What are you talking about?

You never mentioned that before.

Also, where could we even find one?

There's one available.

Sung Yo Han's brain.

What?

Sung Yo Han's vitals are stable now.

He's on the road to recovery.

How many...

would want to see Sung Yo Han...

make it out alive? - Still,

he's your son.

He should at least do one good deed in his life.

My Yo Han...

would want to repent in any way possible.

But still, how can we...

Consider this operation over then.

Wait a second.

You... You harvested his brain...

while he was still alive?

From my Yo Han?

Didn't you know? So much for Mother of the Year.

How could you not have known?

No... No!

How...

You!

You murderer! Bring back my son.

Bring my son back to life!

I did what you asked. I saved your son's life.

Jung Ba Reum.

This is what you get for crossing me.

Sung Ji Eun, Yo Han's blood is on your hands.

I'll kill you!

Didn't all the inmates receive a blood test...

to get tested for AIDS before Na Chi Kook's accident?

Yes. But why do you ask?

Were the blood samples here when Sung Yo Han came?

Just a second.

The day of Chi Kook's accident...

Yes, the blood samples were taken to a facility the next day.

Did Han Seo Joon's blood come out normal?

Han Seo Joon?

Just a second.

Some of the blood samples were contaminated,

which were labeled as "unable to check".

And Han Seo Joon's name is on the list.

Why were they unable to check?

They either got contaminated with foreign substances,

or the amount of blood wasn't enough.

Did you leave your office the day Sung Yo Han was here?

Yes, I had to leave for an emergency.

He was here for Han Seo Joon's blood.

Sung Yo Han wasn't Han Seo Joon's son.

Then what's this?

He brought a strand of hair...

and asked me to check whether the two were related.

"Don't cry."

"Don't cry."

"Jae Hee. We're the only ones..."

"left in this world now."

What?

"You're the only family..."

"I have left, Jae Hee." - I have left, Jae Hee.

We're the only ones...

left in this world.

There's something...

I need to do.

Once I'm done with that,

I'll come back for you.

Then the two of us can finally...

be happy together.

I hope that you won't...

let Yo Han take over you.

I...

I was Han Seo Joon's son.

He knew I was his son.

So he killed Sung Yo Han to save me.

Don't tell me you implanted Sung Yo Han's brain inside me.

I hope you live...

a kind and upright life,

my baby.

She must've seen it.

Poor Bong Yi.

You dumped me.

Why are you hugging me all of a sudden?

What are you doing here?

I think Detective Ko knows...

that you killed Kang Duk Soo.

I came to tell you that.

I told him.

Oh, I see.

Then I guess I came for nothing.

I only came to tell you that.

I should go now.

No, no way.

Ba Reum can't be the only person...

with a scar on his arm.

No, it can't be him.

No way.

No, it can't be.

I saw a monster.

I saw him...

push his own mother out the window.

But I couldn't say anything.

I couldn't even call the police.

We need to end our babies' lives...

before they do something horrible like that.

What do you mean?

Brace yourself.

Keep a close eye on him,

and if you ever think he might turn into a monster,

just kill him.

Please take...

good care...

of my baby.

Yo Han...

Hello.

Goodness.

Did you find your baby?

What? What are you talking about?

Did you get any calls saying they found a baby?

A call about a baby? - Yes.

No, there's nothing here.

But a middle-aged lady got into an accident yesterday...

while holding a baby.

Can I check the CCTV footage?

Can you zoom in?

What about the baby?

You don't need to worry. He didn't get injured.

I see. - But unfortunately,

the baby's guardian is in a very bad condition.

She got severely injured while trying to protect the baby.

Mom.

Mom.

I'm sorry.

I'm sorry, Mom...

Mom.

Are you awake?

Mom.

I'm sorry, Mom.

I'm sorry.

I left...