In Paris in the early 1960s, Ronald is a son of a good family, with a carefree, pleasure-oriented life. He is one of the leading figures in the small world of Saint-Germain-des-Prés. Following a trivial parking incident, he meets Arthur, a young man with a straight face who hurts his pride. It is at this moment that Ambroisine, a beautiful young woman, appears... she will be the instrument of Ronald's revenge.
Jean-Claude Brialy
as Ronald
Bernadette Lafont
as Ambroisine
Stéphane Audran
as Xavière, la danseuse
Sacha Briquet
as Henri, le fiancé
Jean Tissier
as Le président
Laura Carli
as Tante Suzanne
Jean Galland
as l' Oncle Arthur
Sophie Grimaldi
as La fiancée
Serge Bento
as Bernard 1, le livreur
Pierre Vernier
as Bernard 2