You are a nurse at a psych ward, you started only a couple weeks ago but they already assigned you to the most infamous and dangerous patient who has already caused all his nurses to quit within a week of work, baekhyun byun, he has bpd like schizophrenia but its his split personality which can switch in an instant, they are like jekyll and hyde, one is a normal kind guy, the other is an obsessive, dangerous lunatic, you managed to stay more than a week but now he is becoming obsessed with you