Faced with a broken marriage, a woman decides to try to rekindle an incestuous relationship with her younger sister, who is married to a wealthy older man.

Top Cast

Susan StrasbergMartha

Nathalie DelonDiana

Massimo GirottiAlex

Giancarlo GianniniDario

Lars BlochMartha's Lover

Franco AbbianaParty Guest

Gianni PuloneParty Guest

Attilio DottesioParty Guest