A crime series about MosGaz - Valdimir Ionesyan, one of a firsts Russian serial killers caught in 1962 in Moscow.

1962年，来自莫斯科、绰号“莫斯加兹”的弗拉基米尔·伊奥尼森成为苏联首个获官方承认的连环杀手。他的残暴行径及其绰号，至今仍被俄罗斯母亲用来吓唬小孩。

1981年，伊万·彼得罗维奇·切尔卡索夫正在调查一起复杂的案件。和往常一样，上司们对他不满。他在各种会议上遭到斥责，还被威胁要让他退休。切尔卡索夫很难想象自己退休后的生活。但他明白自己开始容易疲惫，会错过重要信息。总之，他开始变老了。是的，那里……

When some college students get together for a hot tub party, they're shocked to find out that their party is being crashed by some tiny, uninvited guests who are hungry for flesh - human flesh.

1980 year. Pre-Olympic Moscow. The MUR people were tasked with preventing a single crime in the capital, clearing the city of all unreliable elements. Even the slaughter department is involved in the execution. Cherkasov and his team are entrusted with the fight against prostitution and "bad luck." But, instead, Ivan Petrovich is forced to investigate one murder after another. In the center of events is a bandit named Skull who recently left the prison. Almost all of the murders committed take place under the Skull, but there is no direct evidence of his involvement in the crimes. It is impossible to prove his guilt, but at the same time his innocence is under great doubt: as if someone invisible constantly saves the Skull from death, clearing the way for him. But who might be interested in this?

Events take place on the outskirts of Moscow in 1965. In the center - the story of the exposure of a woman executioner who, during the war, at the behest of the Germans, shot prisoners, partisans, and civilians. This is actually a separate civil war of the fanatic with their people. During the war, she was barely 20 years old, and on her account there were already fifteen hundred murders. She shot her victims with a machine gun, hiding behind a toy bunny mask. Then she drank a bottle of moonshine and then appeared the next morning without a mask and lived an ordinary life, the same as everyone else ... Therefore, after the war, it was very difficult to figure out the killer. This case was assigned to the chief investigator. His suspicions fall on one or the other woman ...

Ivan Cherkasov, as always, is investigating a complex and complicated case. A student of an architectural institute was thrown from the roof. His mother committed suicide. The suspects are residents of an elite house, cultural figures.

Only the pure of heart will be able to find the key to breaking the curse that holds real pirates captive.

1981. Cherkasov investigates a complicated case. And, as always, his superiors are dissatisfied with him. They reprimand him at meetings and threaten to remove him from his position. It is quite difficult for Cherkasov to imagine himself in retirement. But he understands that he has started to tire quickly and miss important information. In short, he is getting old. Then a young investigator appears who knows how to work with the new computers and brings a lie detector to the department. Ivan Petrovich decides to give in. But in his last case, he must put an end to it himself.

Retired Major Cherkasov helps his former colleagues from the MUR investigate the murders of lottery participants who won large sums of money. Kovalev and Timofeeva believe that the organizer of the lottery Belousov and the host Shorokhov are behind the murders. Gradually unraveling the case, the MUR officers encounter resistance from officials for whom the lottery is an importa...