Klim is a Detective Chief Inspector working for the Serious Crime Unit in Saint Petersburg Police. A dedicated police officer, Klim is obsessive, possessed, and sometimes dangerous in the violence of his fixations. However, he has paid a heavy price for his dedication; he has never been able to prevent himself from being consumed by the darkness of the crimes with which he deals. For him, the job always comes first. His dedication is a curse and a blessing, both for him and those close to him.