Jeanne, a little secretary dreaming of love, meets Alain, a reporter-photographer with a major daily newspaper. He takes her along on his professional nocturnal activities, during which she meets a host of celebrities. One evening, Alain takes photos of the kidnapping of a diplomat, and is followed by a mysterious individual who wants the film back. Alain falls in love with Jeanne. Their embrace is passionate. During the night, he manages to get rid of the follower, then receives a new assignmen...