A middle-aged businessman faces bankruptcy after his partner's suicide and a rival's unscrupulous offer to buy his company. Determined to avoid the trap, he finds an unexpected solution through a prostitute.

Michel Piccoli
as Simon Léotard

Ottavia Piccolo
as Mado

Romy Schneider
as Hélène

Jacques Dutronc
as Pierre

Julien Guiomar
as Lépidon

Charles Denner
as Reynald Manecca

Claude Dauphin
as Vaudable

Michel Aumont
as Aimé Barachet

Jean Bouise
as André

Benoît Allemane
as Antoine