"[2] Stanislas Previne is a young sociologist preparing a thesis on criminal women.

Stanislas, much to the frustration of his secretary, who also has a crush on him, soon falls in love with Camille and works to find the evidence to prove her innocence.

Through investigation, the sociologist and his secretary find a young boy, an amateur filmmaker, who has captured the evidence they need on film to secure Camille's release from prison.

Once free, Camille, who always has loved music and has seduced the cabaret singer Sam Golden earlier in the film, becomes a cause célèbre and a singing star.

Stanislas meets her after a performance, and she seduces him at her home; however, her husband (who is cuckolded many times during the film) discovers them and beats him up.