The young American actor Carl Erikson is the darling of the moment. Whilst in Paris on business, he is signing autographs, including one for Paulette Nanteuil, the actress all the rage in France but a complete stranger to Carl. Charmed by the young woman, he hopes to see her again, but she had given him a false name – that of her friend, Claudine André, a journalist. Meanwhile, Carl Erikson has an interview scheduled with Philippe de Morannes, editor-in-chief of ‘Paris-Soir’ and Paulette’s lover. To thank him for granting him the interview, Philippe unwittingly becomes an accomplice of fate by offering him a ticket to Paulette’s show. Carl sneaks into her dressing room, and Paulette, swept away, gives herself to him for a night of passion. Should she leave Philippe or break up with Carl? Will Philippe succumb to Claudine’s charms, even though she herself is not taken with Carl?

An untiring lady social worker, Émilienne, has as one of her charges a stableman who was wounded by his mistress. Unfortunately, Émilienne's young sister who was helping her at work decides to go away with the stableman.