A schoolteacher takes in a 16-year-old immigrant boy who has found himself without a foster family.

When Colonel Chabert returns from the war, he discovers that he has lost everything.

Investigating judge at the 3rd Criminal Chamber of Marseille, Françoise Larchey is the wife of Jean-Pierre Larchey, a famous architect of the Coast. The couple has a son, Valentin, seventeen years old... The death of Edith Mesniel, a local political figure, puts the town in turmoil. But when Emilie, Edith's only daughter and Valentin's girlfriend, confides to Françoise that her mother's death was not accidental, Madame le Juge decides to look into the case. By attacking this case, Françoise disturbs many people. She receives death threats, her son and Emilie are also threatened but she refuses to give up. And she discovers little by little that the mafia infiltrated in all the country.

Mathieu, a piano virtuoso, goes home to help his brother Paul to take care of their sick mother. Paul is into reenacting old battles, dressing up and getting into character, even dueling if necessary. Mathieu gets involved in this world and play becomes real.