A poor youth of noble birth needs to marry. Will the cynical, calculating upstart who wants to set him on the right course be able to help?

Mr. Longué, aged 79, is offered a life annuity on his provincial estate by his nephew. He receives the same, but more advantageous, offer from his insurer, but Mr. Longué has decided to undergo a rejuvenation treatment in Switzerland, at Dr. Koranoff's establishment. The effect was striking, and he was given a new lease on life, leaving his heirs and insurer in complete disarray. His wife, witnessing her husband's metamorphosis, also undergoes the treatment, and off they go on a second honeymoon to Italy.

1951 film by André Berthomieu

Le très doux et gentil Benoît est gardien d'une maison d'arrêt pas comme les autres située à Clouville, petit bourg de la France profonde des années 1950. Le surveillant chef se prend d'affection pour ses «pensionnaires» et a choisi la gentillesse et la diplomatie plutôt que la manière forte. Progressivement et avec la «liberté de mœurs» et une certaine ambiance délurée, la prison devient de plus en plus un refuge agréable et chaleureux, ce qui ne manque pas d'énerver considérablement la tutelle administrative de notre bon Benoît.

Summoned by his mother to plead, a very young lawyer has a trio of pathetic criminals acquitted. The daughter of one of them reveals to the lawyer that the three accomplices hoped to find food and board in prison. For the beautiful eyes of the young girl, Master of La Bastide attaches the three rogues to his service. Disasters, confusion, clumsiness follow one another until the planned wedding.