Henry Primo, desperate for acceptance and popularity, invites everyone to his 16th birthday party. Unfortunately, that includes the twisted Jim Kizay, a local bad seed who slips Henry narcotics. The next morning, Henry wakes from a hangover to discover seven of his classmates are dead and he's the prime suspect. Local authorities consider it an open and shut case, locking him away in a state mental institution. Fifteen years later, Henry's parents convince the courts to release Henry, and they return him to a specially constructed cell in their home.