When one of his patients is found murdered, psychiatrist Dr. Sam Rice is visited by the investigating officer but refuses to give up any information. He's then visited by the patient's mistress, Brooke Reynolds, whom he quickly falls for despite her being a likely murder suspect. As the police pressure on him intensifies, Rice decides to attempt solving the case on his own and soon discovers that someone is trying to kill him as well.
Traumatized by her mother's death, young Susan is becoming possessed by the same demon that possessed her mother before she died. More and more her husband and psychiatrist are noticing the strange changes.
Countless wiseguy films are spoofed in this film that centers on the neuroses and angst of a powerful Mafia racketeer who suffers from panic attacks. When Paul Vitti needs help dealing with his role in the "family," unlucky shrink Dr. Ben Sobel is given just days to resolve Vitti's emotional crisis and turn him into a happy, well-adjusted gangster.
When New York psychiatrist Bill Capa visits Los Angeles to take over his murdered colleague's therapy group, he finds himself embroiled in the thick of a mystery when he bumps into Rose and begins a torrid affair.