The Punishment of Imitators

A psychiatrist with schizophrenia suddenly developed multiple personalities after being admitted to a mental hospital for two years, and was also involved in multiple murders and multiple disappearances. The police involved in the investigation found clues to multiple personalities in an online novel called Killing Punishment. Is she a multiple personality or just a superb imitator? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.