Produced by the Nazis in honor of the 150th anniversary of Mozart's death: a celebration of his music, as the film shows him traveling to Prague for the Don Giovanni premiere and inspired by his wife to compose the finale.
Careless Fritzi, the wife of a much older professor, has secretly been meeting with the unmarried Baron von Burghammer. Fritzi's husband finds out about the affair. Leoni, Fritzi's sister, pretends to be Burghammer's lover to spare her sister. Burghammer then falls head over heels for the brave...