In 1747, Lena Cajsa Bohman, aged 17, is put on trial, accused by her own father, master carpenter Anders Bohman, of disobedience. She soon confesses to contact with the pimp Lovisa von Plat. This is the prelude to a unique, detailed and puzzling insight into 18th century prostitution. The trial material gives us the opportunity to follow Lena Cajsa through her life. In combination with a variety of sources from 4 years of research, it forms the basis for a rich, broad and analytical history of prostitution in 18th century Stockholm, at a time when the word prostitution was not used and all extramarital and premarital sex was illegal for both women and men. A patriarchal social structure based on God's commandments was reflected in the laws. Horstigmat was reproduced at all levels of society, from legal practice to a popular tradition of grotesque 'hordicts'. At the same time, a young girl from the bourgeoisie could live more or less openly as a 'publican' and still escape punishment and marry nobly. With a micro perspective and in comparison with the regulated prostitution of the 19th century, the picture of 18th century Stockholm becomes more multifaceted. While other early modern stigmas - the rascal, the executioner, the witch - have faded away with changing laws and norms, horstigmat persists. The project seeks to explain why horstigmat has survived the Enlightenment, Romanticism, modernity and the sexual revolution, and provides new knowledge to a strangely unhistorical contemporary prostitution debate.