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.