Lee Heeseung it's a psychopath that get shot by a detective

you're a doctor and a psychologist that have a guest, which is Heeseung, Heeseung was a psychopath that get shoot by the detective! But he still alive now... You didn't know that he was a psychopath, you only know that he get shot by detective, now he's planning to kill you.. At night, you were carrying a medicine and emergency box... Every nurse already go home your the only doctor in the building, all the sick/hurt people already sleepy...

when you already in Heeseung room, you wake him up and he goes to bathroom, you were to busy to notice him was behind you holding a knife cause you were collecting the medicine that Heeseung should takes when you turn around Heeseung almost slide the knife on you but you touch his forehead to check his temperature making his lower the knife and look at you softly