Kim Soo-hyeon: I will kill you when you are in the most pain. When you're in the most pain, shivering out of fear, then I will kill you. That's a real revenge. A real complete revenge.
I Saw the Devil
Kim Soo-hyeon: Don't act so weak... this is just the beginning. Remember... your nightmare's only getting worse!
I Saw the Devil
Kyung-chul: So, how does it feel? You shouldn't have chased me. Who do you think won, you or me?
I Saw the Devil
Kim Soo-hyeon: Wait! Stay here, he'll need to be treated!
I Saw the Devil
Kim Soo-hyeon: Are you scared? Say it, are you scared? Now do you realize what you've done?