
Only 923 spoken words carry a haunting drama. A prosperous Italian family is disrupted by the arrival of a charismatic stranger who inexplicably seduces each member—father, mother, son, daughter—before vanishing. The encounters trigger profound awakenings, yet the family cannot discern his identity or purpose.
Does Theorem have end credit scenes?
No!
Theorem does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Theorem, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Terence Stamp
The Visitor

Massimo Girotti
Paolo, the Father

Anne Wiazemsky
Odetta, the Daughter

Giovanni Ivan Scratuglia
Lucia's second lover

Ninetto Davoli
Angelino, the Messenger

Laura Betti
Emilia, the Servant

Pier Paolo Pasolini

Silvana Mangano
Lucia, the Mother

Carlo De Mejo
Lucia's first lover

Susanna Pasolini
Old Peasant (uncredited)

Alfonso Gatto
Doctor

Luigi Barbini
Boy at the station

Andrés José Cruz Soublette
Pietro, the Son

Adele Cambria
Emilia, the Second Servant

Cesare Garboli
Interviewer (uncredited)
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Challenge your knowledge of Theorem with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.
What is the role of the mysterious figure who arrives at the family estate?
A benevolent guardian angel
A catalyst that disrupts the family's routine
A long‑lost relative
A hired servant
He serves as a catalyst that disrupts the family's routine and reveals hidden desires
Show hint
Read the complete plot summary of Theorem, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
In Milan’s bourgeois landscape, a mysterious figure known as The Visitor appears at the gates of a refined family’s estate, announced by a flustered postman who seems to know something about the stranger’s unsettling arrival. This outsider unsettles the rhythms of the household, moving through its rooms with a calm insistence that unsettles the air and opens doors to places that had long been kept private. The interloper’s presence is at once generous and invasive, a paradox that sets the stage for a study of longing, fear, and the fragile boundaries of propriety.
From the moment he enters, the visitor engages in intimate encounters with each member of the family, weaving a complex web of desire and momentary solace. The devoutly religious Emilia is drawn into an unsettling closeness, while the sensitive Pietro finds a confidant and a doorway to self-assurance in the stranger’s attention. The sexually repressed Lucia experiences a liberating, if disruptive, rush of pleasure; the timid Odetta discovers a different, more perilous kind of awakening; and the tormented Paolo is touched by a tenderness that also unsettles the foundations of his identity as a husband and father. The visitor’s generosity appears boundless—he offers comfort, companionship, and a kind of emotional invitation that unsettles the household’s carefully maintained balance.
Across these encounters, the stranger’s influence is singular: he halts a moment of suicide, consoles, reassures, and excites, becoming physically and emotionally intimate with each member in turn. The maid Emilia is pulled from despair and given a sense of purpose; Pietro gains confidence and a new lens through which to view the world; Lucia experiences a release she had not known; Odetta’s world begins to tilt toward a more perilous edge, and Paolo’s life is altered by a presence that challenges conventional duties and duties’ consequences. The family’s lifeworld—its rituals, routines, and façades—begins to crack under the weight of this intimate intrusion, revealing the hidden yearnings and unspoken fears that lie beneath the surface of a prosperous life.
And then, as abruptly as he arrived, the herald returns with the news that the visitor will depart, leaving behind a vacuum no one is prepared to fill. The family faces the sudden emptiness and the responsibility of negotiating the truths they have kept at bay within the framework of their comfortable routine. The consequences are not the same for each member, but they are equally profound.
When the stranger is gone, the aftermath unfolds in deeply personal ways. Old Peasant returns to a rural village life and is seen to perform miracles, a move that culminates in a symbolic, ecstatic renunciation of self as she is buried in dirt and sheds tears of regeneration. The Odetta sinks into a catatonic state and is ultimately institutionalized, a stark transformation from the girl who once met the world with guarded curiosity. Pietro leaves the family home to pursue art, obsessively drawing the stranger’s face as if it could be a key to understanding what he felt but could not name. Lucia seeks out new sexual experiences with younger men, attempting to recapture the thrill or meaning that the visitor briefly stirred. And Paolo, stripped of material ties, hands his factory to the workers, disrobes at a railway platform, and wanders naked across the slopes of Mount Etna, crying out in a primal mix of rage and despair as if confronting the fragility of the life he built.
In the quiet that follows, the family members must navigate the consequences of a visit that revealed both the tenderness and the danger embedded in intimate connection. The narrative lingers not on sensationalism but on the ways in which a single, enigmatic encounter exposes the core of each character’s humanity, forcing them to confront truths about desire, power, and the price of exposing one’s inner self to the gaze of others. The Visitor remains unnamed and almost mythic, a catalyst whose presence continues to haunt the family long after he has left, reminding us that the boundaries we curate can be the very things that trap us in our own ordinary lives.
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