![Theorem](https://image.tmdb.org/t/p/original//vZk1IggF5XQj4mS7kxG4IiHUSWq.jpg)
![Theorem](https://image.tmdb.org/t/p/w200//k7rEBaYUTgdxVqYl9aZm5ZcoB41.jpg)
Theorem
1 hour 35 minutes1968-09-07
7.1
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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.
Cast
![Terence Stamp](https://image.tmdb.org/t/p/w200//ept9urkuhPbGndVXkERw39R9oid.jpg)
Terence Stamp
The Visitor
![Silvana Mangano](https://image.tmdb.org/t/p/w200//wS40j2uCvA0LenVP8MEhitetnfA.jpg)
Silvana Mangano
Lucia, the Mother
![Massimo Girotti](https://image.tmdb.org/t/p/w200//kAGqyGQf9nsWvelG6uf0MCJtLJ6.jpg)
Massimo Girotti
Paolo, the Father
![Anne Wiazemsky](https://image.tmdb.org/t/p/w200//1YF6xvQQXHgED5vJKSFKTTis7Y6.jpg)
Anne Wiazemsky
Odetta, the Daughter
![Andrés José Cruz Soublette](https://image.tmdb.org/t/p/w200//oh9xn85NO86kRBwCVjDUhBp1MD9.jpg)
Andrés José Cruz Soublette
Pietro, the Son
![Laura Betti](https://image.tmdb.org/t/p/w200//7fQu63Y9LDvAKLGVprtvVBGTbi1.jpg)
Laura Betti
Emilia, the Servant
![Ninetto Davoli](https://image.tmdb.org/t/p/w200//bOs054IC9yaP2DDKdXdH2OEznES.jpg)
Ninetto Davoli
Angelino, the Messenger
![Carlo De Mejo](https://image.tmdb.org/t/p/w200//vRX1CzMF9pGn5cHYxsAbpPGJEUi.jpg)
Carlo De Mejo
Lucia's first lover
![Adele Cambria](/_next/static/media/notFound.aecd17f8.png)
Adele Cambria
Emilia, the Second Servant
![Luigi Barbini](/_next/static/media/notFound.aecd17f8.png)
Luigi Barbini
Boy at the station
![Giovanni Ivan Scratuglia](https://image.tmdb.org/t/p/w200//zE96JkRsKw4SYyc4Mc2hqQT1RLf.jpg)
Giovanni Ivan Scratuglia
Lucia's second lover
![Alfonso Gatto](/_next/static/media/notFound.aecd17f8.png)
Alfonso Gatto
Doctor
![Cesare Garboli](/_next/static/media/notFound.aecd17f8.png)
Cesare Garboli
Interviewer (uncredited)
![Susanna Pasolini](/_next/static/media/notFound.aecd17f8.png)