For several months now, an investigation has been conducted into the robbery of a cashier in the village of Airport. Assistants to the head of the criminal investigation department, Mironov, managed to find direct tracks leading to the thief-recidivist Panasyuk, who is serving a sentence in a colony for petty theft. But Panasyuk died of a heart attack, and his only friend Khlopov had already served his term, went free and ... disappeared without a trace. This is one of the cases that Mironov conducts and controls. But his concerns are not limited to the investigation of crimes. He acutely feels his responsibility for everything that happens in the city.