A valuable painting has been stolen from an art gallery in Paris.. On a train travelling between Paris and Rome, Zutra, a mysterious and sinister character, tries to find the stolen painting.
A guest
A shy but resourceful seller of corks helps a young man get married by passing himself off as a wealthy uncle in the eyes of the mother of the future bride, a marquise hostile to any misalliance.
Rather than commit suicide, it is better to stay at the clinic of Professor Patureau-Duparc. This practitioner experiments on his clients with a serum that modifies their personality. Thus Yolande and Albert become new Romeo and Juliet. They end up marrying each other after having regained their primitive selves. Their married life is then a hell and they welcome with joy the proposal of a new injection of serum.
Ismora's Client (uncredited)
A smooth criminal, who turns to be Manuel Ismora, and his gang successfully and peacefully pull off con after heist. Elsewhere a timid office worker, Gabriel Dupon, is pressured by his boss...
(uncredited)
Portrait of a two-faced man. By day he is rich, brilliant and respectable financial officer Lussac; at night, he becomes "Mirror", a ruthless gang leader in Marseilles.
(uncredited)
When she sets sail for Lisbon, Catherine Laurence, a famous classical singer has but one wish: to be left alone. Unfortunately she soon gets bothered by a rude, invading man. Later she gets to know him better and becomes susceptible to his charm. She realizes that Michel is in love with her and it is not long before she goes beyond her disastrous first impression. Although not quite sure he is a perfectly honest man she entrusts him with a delicate assignment: keep her precious pearl necklace coveted by Van Coolart, a fake Dutch diamond-merchant, and give it back to her in Paris. If he is a robber himself, so much the worse for her. But if Michel keeps the Paris rendezvous love is in store for both of them. Nevertheless there is a crucial factor she regrettably disregards, composer Raymond Aubour, a faithful friend who has been her suitor for ten years.
