FBI agent Griff Krenshaw is dispatched to solve a murder at a federal correctional facility for inmates with a rare genetic defect that leads to psychosis and violence. Once there, Griff becomes convinced that the facility is plagued by a much darker force.—Anonymous

FBI Agent Griff Krenshaw is sent to investigate the death of the head researcher at a special prison for inmates carrying a rare gene that causes psychotic violence. Griff comes to believe that a demon is at work in the prison, and resolves to fight it.