In the center of the city in an amusement park, a body is found in a pond. killed, Leonid Sergeev, turns out to be an ordinary plumber from the nearest suburb. Valery collects evidence of a connection between the deceased and the head of the city, who is engaged in money laundering. The case is transferred to a special department. However, Sokolovsky and Zheka ask Pryanikov for a go-ahead for their own investigation, for which they involve Averyanov's wealthy relatives.