Taejo Wang Geon

1975. A writer who is preparing to publish a book about Hitler's executioner Alex Lyut is killed at his dacha near Moscow. Right before his death, he manages to tell his friend, the head of the special department of the Ministry of Internal Affairs for the search for war criminals, General Pyotr Somov, the incredible news: Fierce, who was considered dead since 1944, is alive. Somov instructs his best investigator, Colonel Yegor Sukharev, to sort out this case. In this, he is helped by a new employee of the special department - Senior Lieutenant Boris Kasyanov.

Picking up from Sherlok Kholms i doktor Vatson (1980) adventures of Sherlock Holmes and Dr. Watson continue as they oppose a fierce crime syndicate in one of their greatest challenges.

1982. Sonya Timofeeva, Aleksey Garkusha and Egor Osadchiy are now on their own, and the ambitious Major Viktor Kovalev is trying to take the empty position of the head of the task force.

1981. Ivan Petrovich Cherkasov is investigating a complicated case. And, as always, the bosses are dissatisfied with them. He is reprimanded at meetings and meetings, threatened with retirement. It is quite difficult for Cherkasov to imagine himself retired. But he understands that he began to get tired quickly, to miss important information. In general, to grow old. Yes, there is also a young investigator who knows how to work on the computers that have appeared, and also brings a lie detector to the department. Ivan Petrovich decides to give in. But in the last case, he must put an end to it himself.

1962. Moscow. Vladimir Ionesyan, nicknamed "Mosgaz," became he first officially recognized serial killer in the Soviet Union. His bloody deeds and his moniker are still used by Russian mothers to frighten their children.

The life story of compulsive gambler and spendthrift William Palmer, nicknamed "Prince of Poisoners" who killed various friends and family members (including his own children) for financial gain without anyone so much as batting an eye.