Antoine, an accountant by trade, becomes a private detective to support his family. His wanderings lead him to transport a cargo of malachite to Le Havre, in the hope of a large bonus. With the help of his family, and despite a few mishaps, Antoine achieves his goal.
Antoine Brisset
Louis « Loulou » Brisset
Albert Lombard, patron de l'Agence Lombard et beau-frère d'Antoine
Le jardinier du « Chasse de la Roche Couloir » à Choigny et passager de la cabine 27
Francine Brisset, infirmière et épouse d'Antoine
Mauricette Brisset, l'épouse de Louis
M. De Sica, homme d'affaires
Le comte Jean-Charles de Bonfort
Francky, un des sept camioneurs, ami de Louis
