Claire, a UNESCO interpreter, begins a romance with an oceanographer named Simon. Their relationship is challenged when Claire receives a breast cancer diagnosis. Faced with her illness and the potential for a mastectomy, she struggles with her self-image and decides to push Simon away, believing the diagnosis will change their future together.

Marlène Jobert
as Claire

Jean-Michel Folon
as Simon

Zorica Lozić
as Olga

Georges Rouquier
as Jean Lafaye

Michèle Simonnet
as Judith

Jean-Claude Carrière
as Le professeur

Roland Monod
as Le spécialiste

Tatiana Moukhine
as La dame au tricot

Jean-Pierre Savinaud
as Le chauffeur de taxi

Pierre Trente
as Le professeur de patinage