Dédé de Montmartre, former king of the accordion, has become a bad boy who lives off drug trafficking and prostitution. He sets his sights on a young girl, fresh and naive, Odette, saleswoman at Galeries Lafayette. But he is touched by the charm of this midinette.
Denise
François, Cécilia and Isabelle are students of the drama class of the Conservatoire led by Professor Lambertin. François is in love with Isabelle who also loves him, but he is pursued by Cecilia, his former mistress. Cécilia commits suicide staging the suicide like a crime, so as to involve Francis. But a testimony restores the truth.
Driven by necessity, Jean Larcher, a young agricultural engineer, accepts the degrading mission of leading to ruin, under cover of administering it, a huge cocoa plantation on the island of São Tomé. His employers, a financial coalition, indeed plan to dispossess its owner, an inexperienced young woman who has just inherited it, of her property. But when Jean comes into contact with her, he recognizes Francesca, a girl he had fond feelings for when he was a student.