In the spring of 1902, Viennese working-class daughter Marie König runs away from her beating father and is lured into a high-class brothel by an agent. Instead of the promised self-determined life "with horse-drawn carriage rides and silk dresses", she experiences closed doors, violence and exploitation. Only after years of agony does Marie confide in the journalist Emil Bader, who makes the conditions in the brothel public and takes the owner, Regine Riehl, to court.