Rosa Roma, an aspiring singer, is signed by backer Ogden Ward on condition that she not fall in love, appear in public, or use her own name. But she meets composer Griffith Ames, falls in love with him, and stars in his new opera. When Ward upbraids her, Rosa tries to satisfy her contract by means of a ruby necklace, which he has been secretly trying to obtain through devious means, but the rubies are stolen. Ames is accused of the theft, but the culprit finally confesses, and Rosa is reunited with Ames and her rubies.