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

To inherit his uncle's hotel and restaurant, a naive and simple man must pass his primary school exam.

During a stay at a roadside inn, long-distance lorry driver Jean Viard meets a young woman Clothilde who works there. Their friendship soon develops into a passionate love affair, even though Jean is already married and is old enough to be Clothilde’s father. Things take a turn for the worse when Jean loses his job and his wife finds out about his affair. But Clothilde’s predicament is even more distressing...