The main character is an extraordinary and mysterious person, at the same time, he (Rodion Meglin) is an outstanding inspector. Rodion is used to work alone in order to keep the secrecy of his unusual method. Young graduate Esenya Steklova is eager to get the internship with the glorious investigator but she could hardly expect the challenges she would face while working with Rodion. Together they investigate the cruelest crimes that took place in the history of Russian criminality.
A mentally ill, sociopathic detective takes on a young female trainee in an attempt to pass on his method of solving crimes; especially those crimes of a more heinous, serial, unsolved and complex version. A world of criminality, morality, legality, and finality that intertwines with varied personal relationships and lessons of love, hate, friendship, forgiveness, choices and murder.