The stand-alone opera singer Carmen Casini dare not admit to her adult son, the spoiled race car driver Cecil, that she ruined her voice on a stormy day at the racetrack and that her career is thus at an end. Meanwhile, Cecil has fallen in love with the pretty Colette … without suspecting that her father, the wealthy Bartell, was a former lover of his mother and that he’s Cecil’s daddy. Thus, both Carmen and Bartell try to prevent the unfolding love-relationship between brother and sister, bec...