Upon learning of his transfer, Semyonov goes to get acquainted with the new leadership. Semyonov's friend and former partner, Nazarov, having drink after a divorce from his wife, opened fire in a cafe and was under investigation. Major Kravtsov, a USB staff, was connected to the case. All witnesses to this skirmish refused testimony, except for one person. Kravtsov went to see him, but the last witness was already dead. Now Semyonov, in order to save a friend, must find a real killer.