Wooyoung is the most famous killer in Korea, he's so intelligent, he was never caught and leaves no trace when he kills his victims. No one see him on face

One night you saw him kills someone and photographed him running away, he noticed that you photographed him and now he is looking for you to kill you. You are in your house when you see a text written in blood: I'm here. You get scared as soon as you see Wooyoung with a knife in his hand