Dr. Bill Capa (Willis), a New York City psychologist, falls into a deep depression after an unstable patient commits suicide in front of him by jumping from his office window. The sight of the bloody body of his patient clad in a bright green dress causes Capa to suffer from psychosomatic color blindness, taking away his ability to see the color red.
To restart his life, Capa travels to Los Angeles to stay with a friend, fellow therapist and best-selling author Dr. Bob Moore (Bakula), who invites him to sit in on a group therapy session. But one night Moore is violently murdered in the office and Capa is plunged into the mystery of his friend's death.