Vasily Ignatievich Belozyorov, an expert criminologist, finds himself from the future in pre-revolutionary Moscow—inside the body of a trainee of the Moscow Detective Department. In his hands is the experience of criminologists of the 21st century. Where evidence is still sought the old-fashioned way, his knowledge is a real weapon against criminals.
Together with the judicial investigator Ryabinin, he solves cases that seem hopeless. Every small detail, in Belozyorov’s experienced hands, becomes the key to the mystery. But keeping his secret becomes increasingly difficult. The more precise his conclusions are and the more often he unravels strange cases, the more suspicious he looks in the eyes of his colleagues.
Come with the hero to old Moscow, where the experience of the future helps to uncover the past—where a mistake can cost not only the hero’s career, but also his freedom.