About the book: 2023 / The rector of the Academy of the Ministry of Internal Affairs handed over to detectives Gurov and Kryachko an original leather key holder with a noticeable design. He claimed that the design on the key holder was a fragment of tattooed skin from the hand of his recently missing son... Is anyone really involved in such a bloody business? Detectives establish the address of a certain master offering similar services and place a test order. What was revealed to them later amazed the experienced operatives with its unprecedented cruelty... Nikolai Leonov, a former investigator of the Moscow Criminal Investigation Department, knew firsthand how the most complicated criminal cases are solved. The classic “Black Cat” series includes more than 200 books, with tens of millions of copies sold..