A liberal-thinking author watches his wife as she attempts to seduce his best friend at a dinner party. She ends up taking on another man as well, and the writer has an affair with the another dinner guest. Soon the three men and two women are entangled in a confusing series of partner-swapping sex sprees where everyone's morals are challenged in the wake of the sexual revolution.
Jean-Louis Trintignant
as Michele
Florinda Bolkan
as Nina
Lino Capolicchio
as Ric
Tony Musante
as Max
Annie Girardot
as Giovana
Silvia Monti
as Actress at Press Conference
Adriana Asti
as Stepdaughter
Titina Maselli
as Mother
Ferdinando Scarfiotti
as Son
Nora Ricci
as 1st Actress
Mariano Rigillo
as Comedian
Antonio Jaia
as Young Actor
