Bill Capa, a psychoanalyst played by Bruce Willis, caters to affluent and mentally unstable individuals in the bustling city of New York. One fateful day, his patient Michelle, portrayed by Kathleen Wilhoite, arrives at their session in a deeply troubled state. As Bill insensitively brushes off her issues, telling her “look in the mirror,” he distracts himself with a phone call. In a moment of despair, Michelle leaps from his office window, resulting in her tragic death. The sight of her bright green dress soaked in red blood leads Bill to suffer from acute stress-induced color blindness, forever seeing the world in shades of gray instead of red.
In an effort to heal, Bill seeks advice from his friend and mentor, Dr. Larry Ashland (Jeff Corey), who encourages him to move past his guilt. To find solace, Bill decides to spend some time with an old college buddy in California. Upon his arrival in Los Angeles, he reconnects with fellow therapist and best-selling author Dr. Bob Moore, played by Scott Bakula, who invites him to his Monday evening group therapy session. Although hesitant, Bill agrees and becomes acquainted with a diverse and complex group of individuals.
Among them is Clark, a character brought to life by Brad Dourif, who struggles with obsessive-compulsive disorder, emphasizing cleanliness and rituals of counting. Then there’s Sondra, portrayed by Lesley Ann Warren, a nymphomaniac with kleptomaniac tendencies, often marrying wealthy older men who meet tragic ends. Buck, a character played by Lance Henriksen, is an ex-cop haunted by the horrors of his past. Meanwhile, Casey, depicted by Kevin J. O'Connor, is a sadomasochist living a life supported by a wealthy, abusive father, and Richie, a sixteen-year-old boy grappling with his identity and a history of legal troubles.
During the group's interactions, it becomes clear that beneath their seemingly jovial camaraderie lies a deeper turbulence. Following the therapy session, Bob drives Bill to his opulent Malibu residence, which is heavily fortified due to Bob's receipt of anonymous death threats, likely stemming from a member of the group. Bob hopes that Bill can utilize his unique ability to discern which of the patients might harbor violent tendencies. However, Bill feels unable to detect anything that would suggest murderous intent amongst them.
Tragedy strikes again when Bob is found murdered in his office, leading Detective Lieutenant Hector Martinez, played by Rubén Blades, to suspect one of the patients. Reluctantly, Bill agrees to inform the group of Bob's demise as he believes he can handle the situation with greater sensitivity than Martinez. Unfortunately, Bill's entanglement deepens when he encounters Rose, played by Jane March, a captivating young woman who rear-ends him in her jeep after the group meeting, further complicating his emotional landscape.
In the wake of the shocking news, Bill steps up to lead the Monday sessions, drawing the affections of the devastated group members. Tension builds as Martinez presses Bill for answers, but Bill refuses to abandon his newfound responsibilities. Following a series of events that intertwine Bill with the dark secrets of the patients, including shocking revelations about their pasts, he faces numerous challenges that force him to delve deeper into the psyche of those around him.
As Bill grapples with the duality of his role as both a therapist and a suspect, he encounters a harrowing sequence of danger, culminating in a chilling confrontation with Dale Dexter, Richie's older brother depicted by Andrew Lowery. Emotions run high as Rose, unmasked as both Bonnie and a victim of familial abuse, also faces her twisted past involving Richie's suicide—her torment stemming from a tragic history of manipulation and violence.
In a climax steeped in adrenaline and revelation, Bill uncovers the gruesome truth behind the murders and strives to protect Rose from her predatory brother, leading to a thrilling showdown that ultimately reveals the tender bond between them. In a moment of catharsis, Rose saves Bill from impending doom, leading to a poignant resolution where love conquers trauma. As they embrace amidst the turmoil, Bill's healing manifests visually as he regains his ability to perceive color—truly seeing the red beacon of hope restored in his life. Through torrential rain and urgent calls from Lieutenant Martinez, their journey together culminates in a heartfelt reunion at the peak of their harrowing ordeal, reminding us of the transformative power of love.
