Prom Night (2008) - Idris Elba Hunts a Killer (9⧸11)

When a deranged high-school teacher kills the family of the girl, Donna, that he loves, in a disturbed attempt to force her into a relationship with him, the man is caught and sent to prison. However, years later, at her high school prom, Donna is about to come face to face with the murderer once more. Will Donna and her friends escape the psychopath?