A gripping psychological thriller unfolds as Dr. Bill Capa, a New York psychologist, spirals into a deep depression after his unstable patient, Michelle, commits suicide by leaping from his office window. The sight of her body, clothed in a bright green dress, leaves him with a startling psychosomatic ailment: he loses the ability to see the color red. This sudden alteration in perception drives him to escape the city and seek refuge in Los Angeles, where a longtime friend, Dr. Bob Moore, offers him a chance to regroup by sitting in on a group therapy session.
The plot shifts from clinical calm to chilling mystery when Bob is found murdered in his own office. Bill becomes entangled in the investigation, drawn into a web of suspicion that targets his entire therapy group. The investigation is swift and uneasy, as the local lieutenant, Hector Martinez, treats every member of Bob’s circle as a potential suspect. Bill stays in Bob’s house and finds himself drawn into a dangerous, clandestine affair with Rose, a striking, enigmatic woman who appears and vanishes with unsettling regularity. This relationship will prove to be the hinge on which the entire mystery turns.
Bill takes over the therapy group, which is a gallery of troubled, highly individual patients. There’s Clark, a volatile man whose OCD adds friction to the sessions; Sondra, a woman whose sexuality and kleptomania complicate every exchange; Buck, a former police officer whose life has spiraled into despair and suicidal thoughts; Casey, an artist who paints startling sado-masochistic imagery; and Richie, a 16-year-old grappling with gender dysphoria and a difficult past with drugs. As the group dynamics thicken, Casey becomes a target, and the danger to Bill grows more acute with each passing day.
The killings and the relationships inside the group begin to reveal a darker pattern. Bill uncovers a troubling reality: nearly every patient has had some form of romantic involvement with Rose. The mystery deepens as the truth emerges that the “Richie” who sits in the group is actually Rose under another persona. The murders are the work of her disturbed brother, Dale. A grim family history unfolds: the brothers once had an actual Richie who hanged himself after being molested by their child psychiatrist, Dr. Niedelmeyer, an abuse that also affected Dale in painful ways.
As trauma and deception collide, Rose’s multiple identities drive the carnage. After Richie’s suicide, Dale coerced Rose into playing the role of their brother, a deception that resurfaced during therapy and allowed Rose to slip into multiple personalities, including a persona named “Bonnie.” Dale’s fear that the patients will link Rose to Richie pushes him to eliminate them one by one.
The confrontation reaches its bloody climax. Dale kidnaps Rose and, in a brutal bid to end the danger, attempts to gun down Bill and Martinez with a nail gun. In a harrowing turn, Rose manages to break free, and she takes control of the moment by killing Dale. The act is both cathartic and damaging, leaving her deeply scarred and contemplating self-harm. Bill steps in with a quiet, hopeful resolve, convincing Rose to choose life. The final image is intimate and symbolic: as they share a kiss, Bill’s sight returns, and he can finally perceive the color red again—an echoed return of perception and a fragile sense of hope after trauma.
The narrative threads together themes of memory, abuse, and the fragility of the healing process. What began as a clinical case of dissociation and grief evolves into a tense, spiraling mystery about how trauma can sculpt the mind and how truth can be buried beneath layers of identity. The story balances patient vulnerability with the perilous edge of trust, reminding us that the path to recovery can be as perilous as the threats that surround those who seek help. In the end, the film’s finale leaves us with a cautious optimism: recognition of color, memory, and meaning can return, but they come with a price, and sustaining them requires courage, care, and the will to keep living.