A Tale of Two Sisters (2003)
Eun-ju: Do know what's really scary? You want to forget something. Totally wipe it off your mind. But you never can. It can't go away, you see. And... and it follows you around like a ghost.
Moo-hyeon Bae: Soo-mi, I know you're very angry with me. And I know I'm a bad father.
Bae Soo-mi: You're not even a bad father.
Moo-hyeon Bae: It's cold so let's go inside.
Bae Soo-mi: I will.
Eun-ju: As much as you hate it, I'm the only one in this world you can call mother, got it?
Bae Soo-mi: Shall we kill them?
Bae Soo-yeon: Let's set them free.
Bae Soo-mi: She'll have a cow if we mess with her precious. I'd hate to see that.