Major of the police Anastasia Kamenskaya receives a promotion - she is transferred from the district office to Petrovka, to the department headed by Colonel Viktor Gordeev, nicknamed Kolobok. Nastya is connected to the case of disclosing the mysterious murder of Irina Filatova, an employee of the Research Institute of the Ministry of Internal Affairs. She does not even suspect which mortal game was involved ...

Kolobok sends Kamenskaya on vacation. In the sanatorium, where she comes, and where her local colleagues promise to meet her, she was not expected. Having settled for her "blood", Anastasia is immersed in her favorite hobby - translations of foreign detectives. Through the neighbor on the number - a respectable lady in the years, a music teacher - Nastya meets an interesting man engaged in "experimental cinema." And then strange things start to happen around her: first, several men try to "take off" her by turns; then, almost in addition to her will, she is introduced to the "master" of the city - an influential businessman who ... asks her for help in investigating the murder of her people. Peaceful rest for Anastasia ends here and she has to look closely at finding the mysterious Makarov - the manufacturer of underground filming scenes of natural murders ...

To Nastya comes her half-brother Sasha - a successful businessman - with a request to help: he suspects his girlfriend that she is a gunner. At this time in the city there is a murder of a policeman. At first they are not connected with each other, these events gradually acquire common features ... The trace leads Kamenskaya to the army general, who lost his only son several years ago through the fault of a group of drunken teenagers. The meaning of his life was the revenge of this suture ...

An accidental crime, leads Kamenskaya to a closed research institute, where experiments are conducted with secret developments that affect the psyche of people. Nastya notes a strange pattern of crimes occurring in the area of ​​the institution's location. And after the first serious contact with the leadership of the scientific research institute, she is subjected to an attempt. When this happens again, it is saved by an unknown person who introduced himself as a passerby to random people. Kamenska, luring the savior to her home, "splits" this guardian angel, who turned out to be an employee of the FSB. There, to the very top, and led the threads of the investigation of the murder of one of the Institute's scientists ...

Every Sunday in the suburbs people die from a sniper shot in the head. Victims are not connected in any way. Simultaneously with the investigation of this crime, Kamenskaya tries to understand the case of her friend and colleague Mikhail Lesnikov, who is accused of taking bribes and murder. Kamenskaya is convinced of Lesnikov's innocence.

On the same day, in different registrar offices of Moscow, the bride was killed in a shot at point-blank range. Red on white - this is the combination of colors seduces an unknown maniac. Is it possible that an abandoned woman avenges others' happiness? By coincidence, Anastasia Kamenskaya, who is getting married, is in the same registry office with the murderer. Perhaps, the pictures taken by the photographer who works at weddings will help the investigation ...

In the entrance of his own house, a famous writer Paraskevich is killed - the author of popular romance novels. The widow of the deceased, Svetlana, intends to publish her husband's latest work, demanding a fabulous fee for the book. Major Kamenskaya, investigating the crime, considers it necessary to make an author's examination of the text, during which completely unexpected details are clarified ...

Unusual task is given to Anastasia Kamenskaya - to meet from the colony and ensure safety on the way to Moscow just released a person about which she knows only that his name is Sauljak. Returning to the capital and starting an investigation of a series of mysterious crimes, the victims of whom are guilty of violent murders people, Major Kamenskaya did not even suspect that she would meet her wards again ...