Three couples are involved in a murder at Montecarlo.

In the absence of his wife, a clarinet player is induced by a friend to meet a call girl, but arrived after a crime. Perceived by some people leaving the scene of the crime covered by his raincoat, he became the only suspect for the police. His only hope is to discover the murderer before is name is mentionned publicly, specially in front of his wife.

"Le Dabe" retired many years ago and now he lives in the Tropics where he owns stables and horses. He is a very rich man. He was the king of all money counterfeiters. He is contacted from Paris to organize a new job. He says no. But when he finds out the the currency that should be counterfeited is the Dutch florin, he accepts immediately. He retired after having counterfeited 100 florin notes just before the Queen Wilhelmina retired them from circulation. He flies to Paris. But the gang is not to be trusted, at least not all of them.

1959 French film directed by Julien Duvivier

Odette Joyeux plays an eccentric young aristocrat called "Chiffon", who is struggling to comply with the social conventions of the community. A widow, her mother (Suzanne Dantes) would like to remarry a rich noble. Without realizing it, Chiffon is in love with her uncle, a ruined pioneer of aviation ...

While on vacation, a woman's husband is taken by the Russian government. After one attempt fails, she begins looking for a suitable spy to capture and trade in exchange for her husband, but she develops an attraction to the one she thinks is a good candidate.