Agathe Perrin, a wealthy widow in her forties, lives with her ailing father in an estate on the shores of Lac du Bourget, not far from Aix-les-Bains. For the past four years, she has been involved in an affair with a twenty-four-year-old artist, Jackie, that is beginning to weigh heavily on her. The frequent visits of a brilliant Aix doctor to the sick old man's bedside have distracted Agathe from her very young lover. She'd like to send him away, but he clings to her desperately, and we witness the drama of this break-up, both feared and rejected by Agathe. Blinded by jealousy, Jackie decides to leave, but not without behaving like a spoiled, insolent child.