Minna Halliday makes a living in the most expensive brothel in London, but she sells not herself, but her literary talent. Her duty is to write erotic advertisements that lure rich men into the arms of “priestesses of love.” One of these opuses was found in the pocket of the murdered man, and Minna becomes an important witness in the case of a mysterious crime. Policeman Salter Lambrick refuses to believe his eyes: a modest young lady simply cannot be the author of such texts. However, soon his distrust gives way to acute curiosity - is Minna capable of realizing her fantasies in reality?..