Mario, a rich and eccentric war hero befriends Marco, a loner with a sailboat, and takes him home to meet his estranged wife Cleofe and sexually repressed sister in law Matilde. Mario confesses his love for Matilde and so ensues a love triangle.

Ugo Tognazzi
as Orimbelli

Patrick Dewaere
as Marco Maffei

Ornella Muti
as Matilde

Lia Tanzi
as Landina

Gabriella Giacobbe
as Cleofe

Katia Tchenko
as Charlotte

Karine Verlier
as Germaine

Franco Sangermano
as Mazzoleni - the Examining Magistrate

Piero Mazzarella
as Brighenti

Renzo Ozzano
as Warrant Officer Gambino