1988 A terrorist attack was committed in one of the Siberian cities. As a result of a controlled explosion in a cafe, four respected visitors who had gathered for a serious conversation were killed. The investigation was entrusted to a group of operatives under Captain Andrei Laptev. He understands: a new, criminal era is beginning in the city. Suddenly, a sharp turn in the case occurs: the investigation receives a letter saying that the explosion in the cafe is the work of a mysterious organization that destroys criminals who, for various reasons, have escaped retribution. Now the detectives themselves come under suspicion of committing a bloody act...