In the very center of Siberia, unknown avengers are at work, pursuing local corrupt officials and punishing them for their crimes. And there is something to punish for. The head of the district administration is molesting children. A member of the Legislative Assembly hit a woman and didn't even stop. The prosecutor and deputy head of the district administration are bribe takers and thieves. The officials are scared. They demand that Moscow law enforcement authorities protect them from lynching. FSB Lieutenant Colonel Igor Nedelin has been assigned to deal with the avengers. Soon the detective becomes aware that not so long ago the avengers “checked in” in Kachalov, near Moscow. All that remains is to understand: lynching is carried out by the same people? And then it turns out that one of “their own” is leaking dirt on officials to the avengers...