Paris can boast a population of 2,125,246. Of these 1,153,000 are women and 10,000 are actresses. Yvan, a young successful sports writer, is married to one who is very well known - Charlotte. They try to live a normal life, but her fame makes it difficult - autograph hunters interrupt their dinners, cops about to serve traffic summonses let them off with a warning and a smile when they recognize her, and impossible-to-get restaurant reservations magically appear when Charlotte makes the calls instead of Yvan. All this threatens and challenges his male ego, but Yvan is able to take her stardom in stride. Until, that is, a man at a bar asks him if he gets jealous watching his wife make love in the nude to another man on screen. It has never seriously bothered him before, but the stranger sows the first seed of doubt in his head... So, when Charlotte lands a role in a new movie opposite a suave international star, it's enough to send Yvan over the edge, and he begins to devise all kinds of schemes to prove his wife's fidelity.