A dam is under construction in the Pyrénées mountains. All the workers only have eyes for pretty, sensual Clara, the canteen waitress. And what she exchanges with many of them is more than just looks, this is for sure. Nevertheless, despite her frivolity, Clara falls truly in love with Tonio...
After a Parisian haute couture house is robbed and jewels stolen, Commissaire Legrand leads the investigation. His suspicions fall on Linda, the great couturier. He decides to follow her to Nice to present her next collection.
