The main character, Daria Shevchuk, is a senior police officer in the Siberian city of Shantarsk. Dasha is a beautiful, sexy girl who knows martial arts, a kind of Russian Nikita with the intelligence of Kamenskaya. Darya's determination and courage did not come from nothing. At the age of fourteen, she fell into the hands of bandits. The girl spent several terrible days in prison. In the hands of Daria's father, a police officer, there was a case of drug trafficking, and the criminals blackmailed him by taking his daughter hostage. The accident broke Dasha's father and forced him to leave the organs, and Her mother, unable to bear the grief, died. Therefore, violence and injustice cause Dasha to rage, and She confronts them, sometimes even too aggressively, for which she received the nickname "Mad".