A French variety show.

Harry Louis is a jazz clarinetist, obsessed by his art: he would like to match Sidney Bechet; the famous musician tries to give a piece of advice to his fan who, accidentally, kills him in a fit of anger. With the help of his mistress, Muriel, who has witnessed the scene, Harry does away with Bechet's dead body. But, during this gruesome trip, Muriel is accused of being responsible of a road accident. The insurance company sends a young man, Laurent, to investigate.

In the 1953 elections, Piédalu was elected mayor of Marboue-Chambourcy. The esteem of his fellow citizens won him popularity, but he had to reckon with the wiles of his political opponents if he ran for deputy. The support of the son of one of his rivals, who loves Françoise Piédalu, and above all his stubborn common sense and natural malice, help him to overcome all obstacles.

Hopes and love and ambitions and friendship in a group of young jazz-loving Parisians.