François Marsault, a war veteran, makes the most of his retirement alongside his wife Annie. Authoritarian and ruthless, François rules his family with an iron fist — but when he discovers that his esteemed wife cheated on him 40 years ago, he files for divorce and confronts her former lover, who lives in the French Riviera.

François Marsault, a war veteran, makes the most of his retirement alongside his wife Annie. Authoritarian and ruthless, François rules his family with an iron fist — but when he discovers that his esteemed wife cheated on him 40 years ago, he files for divorce and confronts her former lover, who lives in the French Riviera.