Claude, son of a ruined family, pretends to be a dangerous trickster in order to get credit from the guys in the middle. He is in charge of retrieving compromising letters from a woman whose lover fears blackmail. But before arriving there, Claude fortunately meets love.
Paris, 30's declared professional rivalry between two stars of the musical, Yvonne and Gaby leads to dire consequences. Yvonne's body is found in the theater. Gaby's future is threatened against the judgment to which it is subjected, with a probable prison sentence.
A woman, named simply "Elle" and her husband, a wealthy industrialist, are not on the best of terms. While she enjoys the way he caters to her every whim, she wonders whether he really loves her. He, on the other hand, torments himself by imagining rivals. One morning she awakens from a nightmare in which she has been pursued by a man in various guises, who turns out to be the famous Detective Z, whose memoirs she has been reading. When she and her husband quarrel over leaving Paris permanently for a country estate, he goes to the "Trouve Tout" Agency and hires, of all people, Detective Z, to win back her affection.
Two men, lost in the desert, meet Queen Antinea, ruler of Atlantis.