An armed attack on cash messengers is undertaken near a trade center in a small provincial town, an agent of Ministry of Internal Affairs dies in crossfire. A crime investigator major Rovnin (V. Kuznetsov), who appeared to be a close friend of the deceased, comes from Moscow to assist in the investigation. He is astonished at how savagely his friend was shot, as if someone was revenging. Local investigating bodies are convinced that they can manage this and arent too satisfied with the arrival of Moscow expert. They try to handle this as soon as possible, even at the cost of mistake. But the majors task is to find the killer, in spite of the fact that he is left nothing but to hold the investigation by himself.