Five years ago, Cassie Daniels, thinking herself to be Lizzie Borden, savagely murdered six innocent people. Since that time, Cassie has been locked away in a saitarium where, every night, she is plagued by blood drenched nightmares and haunted by the ghosts of her victims. During a therapy session, Cassie slips back into her Lizzie Borden persona and brutally murders her doctor - setting off a chain-reaction of violence and bloodshed.