1987 An old criminal case fell into the hands of Viktor Voronov, a student at the Higher School of the Ministry of Internal Affairs. The verdict on it has long been passed, the criminal is serving a well-deserved punishment. But is it deserved?.. Having carefully studied the circumstances of the incident, Victor comes to the conclusion that the charges in the case were masterfully falsified. It turns out that the criminal is actually the victim of a well-thought-out conspiracy. But whose? Voronov decides to conduct an independent investigation. He finds the main participants in those events and finds out the true motive of the crime, which amazes the future opera with its cunning...