Alexander Trepalov is a legendary figure. He personally infiltrated the bandit groups in Hitrovka to destroy the source of crime from within in one fell swoop. To do this, he posed as a Petrograd robber named Sanya Kosoy. Slick in a suit with a gold watch. A recruited member of one of the gangs, nicknamed Monashka, was supposed to “vouch” for him in front of the thieves. At that time, the leaders of Hitrovka gathered in Madame Sevastyanova’s den. Monashka and Trepalov show up there and propose to one of the main bosses of Hitrovka, Mishka Ryaboy, to organize a raid on the railway ticket offices. The plan was to quietly capture the thugs, so on the day of the raid, according to Trepalov’s plan, the bandits, without attracting attention, began to gather one by one at the apartment indicated by Alexander, where MUR operatives were already waiting for them. However, Mishka Ryaboy, upon entering the apartment, sensed something was wrong, reached for his revolver and cocked the trigger but was immediately disarmed by Trepalov. In two weeks, MUR operatives neutralized the gangs of Grishka Lawyer, Martazin, and Synka without losing a single detective.