Count Alfred (Maurice Chevalier), military attaché to the Sylvanian Embassy in Paris, is ordered back to Sylvania to report to Queen Louise for a reprimand following a string of scandals, including an affair with the ambassador's wife. In the meantime Queen Louise (Jeanette MacDonald), ruler of Sylvania in her own right, is royally fed-up with her subjects' preoccupation with whom she will marry.