A young physician becomes lonely when his workaholic wife ignores him to concentrate on her professional career. He is befriended by an older female artist who is fond of hallucinogenic mushrooms. When his wife is late for their anniversary celebration, he drinks and takes mushrooms with the artist. He wakes up to find she has died and is fearful he may have accidentally killed her.

Mylène Demongeot
as Anne Calder

Alida Valli
as Linda Benson

Catherine Allégret
as Jeannette

Jean-Claude Bouillon
as Éric Calder

Philippe Monnet
as Gaëtan Benson

Jean Claudio
as Inspecteur Kogan

Georges Géret
as Kurt

Guy Grosso
as Acteur dans le film publicitaire

Claude Para
as

François Simon
as Le juge d'instruction Forman