Theorem

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, Silvana Mangano, Massimo Girotti, Anne Wiazemsky, Andrés José Cruz Soublette, Laura Betti, Ninetto Davoli, Carlo De Mejo