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In the late 1980s, Ninel, who has a unique acting talent, becomes the partner of a famous swindler in order to save her father. Her fearlessness and gift of transformation help her pull off the most incredible machinations.

Nikolay, a young aristocrat, joins the detective police against societal norms. Mentored by veteran Shchukin, they investigate a string of enigmatic crimes spanning the city's slums and elite circles.

The final part of the trilogy of the Moscow criminal department led by Major Ivan Cherkasov investigating the case of maniac - murderer with machine gun.

Mid 80s, Moscow. Vladimir Chayanov, the senior detective of the MUR, is appointed head of the investigation team in one high-profile case - he is the best, so no matter how he investigates the murder of the Loshkarev family. The bodies of the father, his elderly mother and eldest son were found in their own apartment in Moscow. The youngest son survived - he practically did not see anything, because he hid in the sofa, and the mother of the family, who was not at home at that moment. A large amount of money is found in the sofa where the boy was hiding, but how can an ordinary family, whose head worked as a simple driver, have so much money? Elena Kozina is sent as an assistant to Chayanov: she is an operative worker who was transferred to an internship at the MUR from Leningrad. Chayanov believes that this operational work is not for gentle girls, so Lena fills up with paperwork. But she, having studied the case materials and taking advantage of Vladimir's absence, begins her own investigation.

1979. The apartment of a famous ballerina was robbed in Moscow. The housekeeper was killed, the attackers fled. Investigator Anokhin offers his friend, journalist Eltsov, to help find the criminals. At the same time, there is a high-profile bank robbery in Yerevan, which is carried out by a specially released bugbear Machaon. At first glance, the two cases seem completely unrelated. Delving deeper into the investigation, special correspondent Eltsov realizes that he has discovered a conspiracy, the bloody threads of which stretch to the highest echelons of power.

Policemen from the Yalta city police department are investigating a high-profile crime committed at the height of the holiday season in the summer of 1971. In one night, there were several attacks on speculators selling bootleg jeans, and one of them was even killed. The day before, all the best operatives left for the All-Union Conference on the exchange of experience, and the murder has to be investigated by very young inexperienced operatives and those who have always been on the sidelines.