Defense de savoir 1973 When the police find Simone seated near her husbands corpse it is predictable that she is charged with the murder Jean Pierre Laubray is appointed counsel for the defence He begins an inquiry into the case and he finds out that the murdered man had killed a barman in a robbery the night before He finds out as well he was a leg man of Cristianis for his election campaign He tries to contact Juliette, Cristianis daughter, and he discovers that also Bruno, Juliettes brother, died that same night in a car accident