Anthology film with three shorts each featuring a famous detective: Monsieur Wens, Lemmy Caution and Maigret.

1939 film by Claude Autant-Lara, Maurice Lehmann

In the 1950s, in a small provincial town, a young inexperienced judge clashes with an influential notable during an investigation into a suspicious death. His perseverance to get to the truth will cause a huge scandal.

On the banks of the Rhône, not far from Tain l'Hermitage, Alcide Garonne, an old ferryman - and incidentally a poacher - lives out of wedlock with Victorine Rousset nicknamed Maryse, a colorful tramp. When Garrone's son, Pilou, a worker, falls in love with Augusta, the mayor's daughter, the unconventional old couple tries to protect the unconventional young pair from the disapproval of self righteous villagers.