Stephane (Victor Lanoux) is the mayor of a small village. He is also the manager of the tannery which provides the inhabitants with work. In a fit of anger, he kills his wife (Edith Scob). A judge (Jean Carmet) tries to prove his culpability, but it's not an easy task, because there is a political and social pressure.

Mr. Hulot is the head designer of the Altra Automotive Co. His latest invention is a newfangled camper car loaded with outrageous extra features. Along with the company's manager and publicity model, Hulot sets out from Paris with the intention of debuting the car at the annual auto show in Amsterdam. The going isn't easy, however, and the group encounters an increasingly bizarre series of hurdles and setbacks en route.

A young Italian, living in Paris with his French wife, is about to become a father. Before the baby is born, Alberto must repay his father for every expense from his own birth until he left home.