Alsonia

Michel Levasseur is a joyous reveler who does not care about the next day. So much so that one day a bailiff bursts into his Paris apartment and seizes his furniture on behalf of Raymond Sauvaget, his landlord, a rich food industrialist. But far from resenting Sauvaget's act of hostility, Michel ... becomes his friend. Now Raymond, although prosperous, does not know how to handle women. That is why he asks Michel, a regular Casanova, to give him lessons in seduction.

A rich banker is actually a crook. His mistress, an alien, wants to become French and the only way is to marry a Frenchman.

Young Jonny Dupont, son of a former employee of fashion designer Rocaille, is tasked with turning around his father's fashion house, which is facing bankruptcy. In carrying out this difficult task, he encounters hostility from Liliane, Rocaille's daughter.