Georges Dewalter, un homme ruiné, sur le point de quitter la France, passe pour richissime, grâce à une automobile Hispano-Suiza qui lui a été prêtée, au moment où il rencontre Lady Stéphane Oswill, une femme riche mal mariée à un homme brutal. Ils tombent amoureux.

The almost financially ruined French gentleman Gaston Dewalter spends several days in Biarritz before going off in the Hispano-Suiza, a luxe car which was a present from his friends. George becomes the lover of Lady Stéphane Oswill pretending he is wealthy. Then Stéphane spends the remaining funds with which the now desperate George hoped to rebuild his fortune in Senegal.