Diaz, a short-tempered convicted felon faking insanity to serve his prison sentence in a mental institution for chocking a studio executive upon his arrival to Hollywood, sits in a therapy session along with the other patients led by the hospitals new psychiatrist Dr. Snyder. Diaz finds Snyder a bit off and begins to question his practice. As the evaluation heats up, Diaz realizes he has a lot more in common with each member of the group than he expected, including Dr. Snyder.