Coincidence. Part 1

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 ...