Unspeakable (2003) is a Horror film that follows despite vocal objections from Warden Blakely, prison psychologist Diana Purlow journeys deep inside the mind of serial killer Jesse Mowat in a desperate attempt to reveal the source of his psychotic tendencies. Unspeakable is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 3.8 out of 10 from 28 votes. Fans of horror movies may also want to explore similar titles below.