Gustl Leubelfing, daughter of the mayor of Nuremberg adores the king of the Swedes. So she happily substitutes her brother as Gustav Adolf's page instead of marrying her fiancée Roland. Of course she has to hide that she's a woman, especially when they go into war against Wallenstein.
Young Prince Nechljudov is summoned as a judge in a murder trial. A rich merchant was found dead in the room of the inn where he was staying and the prostitute Maslova was accused of the crime. Nechljudov recognizes in the woman the maid of the aunts he had seduced and abandoned years before and tries to convince the authorities of her of his innocence but to no avail. Convinced that he is responsible for her moral fall, he follows her to Siberia where she must serve her sentence.