A deadly form of madness has taken over Cunningham Mental Hospital, and it's not just the patients whose sanity is slipping in this dark thriller from director William Butler. Cunningham is infamous for housing some of society's most dangerously psychotic criminals, and when a staff nurse is murdered, newly hired psychiatry intern Clark Stevens (Joshua Leonard) begins to sense that the staff is being held in the grip of a deadly madness. As Clark begins an investigation into the murder, his research begins to yield ominous answers that may be better left unexplored.