A wealthy Italian household is turned upside down when a handsome stranger arrives, seduces every family member and then disappears. Each has an epiphany of sorts, but none can figure out who the seductive visitor was or why he came.
Directed by Pier Paolo Pasolini
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TrailerOfficialTheorem (1968) - Pier Paolo Pasolini (Trailer) | BFI
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Cast

Terence Stamp
The Visitor

Silvana Mangano
Lucia, the Mother

Massimo Girotti
Paolo, the Father

Anne Wiazemsky
Odetta, the Daughter

Andrés José Cruz Soublette
Pietro, the Son

Laura Betti
Emilia, the Servant

Ninetto Davoli
Angelino, the Messenger

Carlo De Mejo
Lucia's first lover
Adele Cambria
Emilia, the Second Servant
Luigi Barbini
Boy at the station

Giovanni Ivan Scratuglia
Lucia's second lover
Alfonso Gatto
Doctor
Cesare Garboli
Interviewer (uncredited)
Susanna Pasolini
Old Peasant (uncredited)
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