The very modest lawyer (Jean-Louis Trintignant) in this case of murder finds much more than he is looking for and then must decide what to do with the unwelcome information. He is defending a woman who is accused of killing her lover. It turns out that the lover was actually killed during a holdup, and was a member of a gang which did bullying favors for local politicians; and the trail doesn't end there. This French film is directed by Trintignant's wife, Nadine.