Germany under Napoleon. Johanna is travelling by stagecoach when one of its occupants, Major Korfes, is arrested by the French militia. Before capture, he gives Johanna a mysterious letter. To solve the mystery, she joins the German corps as the “Black Hunter”. A fantastic breeches role for the lesbian Marianne Hoppe, who two years later, married her gay film partner Gustav Gründgens to prevent persecution by the Nazis.
Princess Melanie wants to examine her future husband and pretends to be his maid. His Highness plays the secretary. While a goofy servant mimics the baron, he himself takes time to flirt with the alleged maid.
Reinhold Schünzel plays the rigid representative Traugott Bellmann, who publicly condemns the low morals of the night life. Although Belmann's stance is supported by his wife, he is strongly opposed by his father-in-law, a champagne manufacturer. But when he inherits 500 000 Marks in cash and the infamous nightclub "Der Himmel auf Erden" ("Heaven on Earth") from his deceased brother, Bellmann really gets himself into trouble: In order to fulfil his brother's will - and to get hold of the money - , he has to be at the club every night at 9 pm.
