In the state capital of Linz, the bodies of two prostitutes are discovered. The two young women were brutally executed with the medieval torture device known as the garrote. Experienced detective August Roth and his young colleague Simon Burgstaller delve into the dark world of Linz's red-light district. The author Karl Traunmüller, a long-time police officer himself, offers an unvarnished look at a world that typically remains in the shadows.