Synopsis

Orphan Olivia, possessed by countless demons, relies on a music box given by a priest to seal the evil spirits inside her. At university, she suffers extreme bullying from her arrogant roommate Chloe and her clique. To boost her livestream views, Chloe takes Olivia to an abandoned asylum for thrills and maliciously smashes the music box. Losing her anchor of sanity, Olivia completely loses control—the demons inside her are unleashed, and she exacts a brutally bloody revenge on her bullies. At the last moment, her childhood friend Amy snaps her back to reason. Olivia perfectly plays the innocent victim and walks away scot-free, while her tormentors end up dead or locked away in mental institutions.