Colonel Gurov of the Interior Ministry is tasked with developing an undercover casino operation. A series of previous raids has yielded no results—each time the criminals manage to escape. It seems that “poker mafia” is warned every time by someone who knows the operatives’ plans. Gurov begins a covert investigation and finds that the informant of the “players” is… his own boss, General Orlov. A named pistol belonging to the general has gone missing, and it has become the subject of blackmail. Well, finding the culprits for an experienced detective is a matter of technique. But at the very last moment, the situation suddenly changes—the criminals decide to use the named pistol for its intended purpose…