Unconventional psychotherapist Dr. Ty Adams (Michael Beach) takes residence at Sedah State Mental Hospital where he will be filmed by documentarian Parker (John C. McGinley) for a film on his methods of non-medicinal approach to treatment. Dr. Adams` confidence is offset by the recent loss of his wife and young daughter. He soon meets his ultimate professional challenge, however, in the form of a stranger claiming to be Satan (Eriq La Salle). Satan is intelligent and insightful, and before long, Dr. Adams will find himself involved in a maddening game of role-reversal. An engaging psycho-thriller, CRAZY AS HELL was co-written by Jeremy Leven, based on his 1982 novel SATAN: HIS PSYCHOTHERAPY AND CURE BY THE UNFORTUNATE DR. KASSLER, J.S.P.S.