A psychiatrist in a city of rituals
The Believers, directed by John Schlesinger and released in 1987, is a horror thriller set in New York that begins with a tragedy and descends into a world of secret rituals. Martin Sheen plays Cal Jamison, a police psychiatrist whose wife dies in a freak accident, leaving him to raise their young son, Chris, alone. Cal moves to New York for a fresh start, takes a job consulting for the police, and is drawn into a series of murders that the police cannot explain. The victims, he learns, are connected to Santería, an Afro-Caribbean religion that, in the film’s fictionalized version, involves animal sacrifice and, in its most extreme form, human sacrifice to gain power and wealth.
Cal is a rational man. He is a psychiatrist, a professional listener, a man who believes that behaviour can be explained, treated, and understood. The film’s horror comes from the slow erosion of that rationality. As Cal investigates, he meets practitioners who speak about their faith with conviction, neighbours who warn him to stay away, and a colleague who seems helpful but may be part of the cult. He begins to see symbols, to hear drums, and to suspect that his son is being targeted as a sacrifice. Sheen plays that erosion with a growing, controlled panic. Cal does not become a screaming horror hero. He becomes a father who is losing his grip on the explanations that used to protect him, and who must decide whether to believe in something he cannot prove in order to save his child.
Cal Jamison and the price of grief
What distinguishes The Believers from a standard occult thriller is its attention to grief. Cal is not only investigating murders. He is mourning his wife, trying to be a good father while he is still in shock, and trying to build a new life in a city that feels hostile. Sheen, who has often played fathers under pressure, brings a weary tenderness to those early scenes. He cooks for Chris, he reads to him, he tries to answer questions about death that he does not know how to answer himself. That tenderness makes the later horror more effective, because the audience understands what Cal stands to lose. It is not only his life. It is his son, and his chance to be a father again after loss.
Schlesinger, who had directed Midnight Cowboy (1969) and Marathon Man (1976), brings a New York filmmaker’s eye to the material. He films the city not as a glamorous backdrop but as a place of crowded apartments, police stations, botanicas selling candles and herbs, and parks where rituals might be hidden in plain sight. Sheen moves through that city as an outsider who is learning its rules too late. He talks to a Santería priestess, played with authority by Helen Shaver, who tries to help him, and to a police detective who dismisses his theories. Each conversation leaves Cal with less certainty and more fear. Sheen plays that accumulation of fear in his body: he sleeps less, he checks on Chris more often, he starts to see threats in ordinary places.
Faith, rationality, and the film’s controversy
The Believers was controversial on release, in part because it fictionalized Santería, a real religion practiced by millions, as a source of horror. Modern viewers should watch it with that context in mind. The film’s version of Santería — with its emphasis on sacrifice for wealth and power — is a Hollywood invention, not a documentary, and practitioners of the religion rightly objected to its portrayal. What remains interesting, apart from that problem, is the film’s central question: what happens when a rational, secular professional encounters a belief system that claims real power, and when that belief system seems to work?
Sheen’s Cal is the vehicle for that question. He begins as a sceptic, a man who would explain a ritual as psychology, a coincidence, or a con. As the evidence mounts — a murder victim with ritual markings, a colleague who dies mysteriously, a series of events that seem too patterned to be chance — Cal’s scepticism cracks. He does not convert to Santería, but he begins to act as if its threats are real, because the alternative is to watch his son die while he insists on a rational explanation. Sheen plays that shift without making Cal look foolish. He makes him look desperate, and desperation, in a horror film, is more compelling than belief.
The film’s climax, in which Cal must perform a ritual himself to save Chris, is deliberately ambiguous. Has Cal embraced the very system he feared, or has he used its symbols against it? Schlesinger leaves the answer open, and Sheen’s face in the final scenes — exhausted, relieved, and uncertain — reflects that openness. Cal has saved his son, but at what cost to his own understanding of the world? The film does not answer, and Sheen does not pretend to know.
Sheen in a horror thriller
For Martin Sheen, The Believers was a rare venture into horror, a genre he had touched in The Dead Zone (1983) but never as a leading man in a contemporary thriller. He brings to it the same qualities he brought to his dramatic roles: a believable professionalism, a father’s worry, and a moral seriousness that keeps the film grounded even when its plot becomes extreme. Without Sheen, Cal could easily have become a generic horror protagonist, running from scene to scene. With Sheen, Cal feels like a real psychiatrist, a real widower, and a real father, and the horror feels like something happening to a person rather than to a plot device.
That grounding is also why the film’s quieter scenes work. Cal talking to his son about his mother, Cal trying to sleep in a new apartment, Cal listening to a patient who may be lying — these moments, played by Sheen with restraint, give the audience a reason to care when the drums start. Schlesinger understood that horror depends on empathy, and he cast Sheen because Sheen generates empathy without trying. He does not need to beg the audience to care about Cal. He simply plays a man trying to do his best in impossible circumstances, and the audience cares because they recognize that effort.
Why Cal Jamison is worth remembering
Cal Jamison is worth remembering because he shows Martin Sheen’s range in the late 1980s. In the same year, 1987, Sheen played Carl Fox in Wall Street, a working-class father who warns his son about greed, and Cal Jamison in The Believers, a professional father who must confront a world he does not understand to save his son. The two roles are mirror images: one father speaks truth to power in a boardroom, the other speaks truth to fear in a ritual circle. Both fathers are defined by love for their children and by a willingness to act when action is costly.
Watch The Believers with its fictionalized religion in mind, and watch Sheen. Notice how Cal’s professionalism frays, how his grief returns in moments of stress, and how he holds his son a little tighter as the film goes on. That holding — literal and emotional — is the film’s real subject. Horror, in Schlesinger’s film, is not only about rituals and sacrifices. It is about a father who has already lost one person he loved and who refuses, at any cost, to lose another. Martin Sheen makes that refusal believable, and that is why Cal Jamison, despite the film’s flaws, remains a distinctive entry in Sheen’s filmography: a rational man, pushed to the edge of belief, who chooses his child over his certainty.