Pier Paolo Pasolini
Terence Stamp, Silvana Mangano, Massimo Girotti, Anne Wiazemsky, Andrés José Cruz Soublette, Laura Betti, Ninetto Davoli, Giovanni Ivan Scratuglia
7 from IMDB
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.