In the Department for Combating Organized Crime of Krasnoyarsk, information appears that several employees are connected with criminal groups. Moreover, these “werewolves” are preparing a series of contract killings. But it is unknown which of the policemen is a traitor. To find out this information and catch the “werewolves,” the case is entrusted to Major Polyakov. He suspects his colleague Kazantsev, with whom he was on a business trip in Chechnya. But the informant agent who provided operational information about the traitors dies. In addition, Major Polyakov’s girlfriend, the beautiful Olga Sechina, turns to the policeman with a request to help her ex-husband - to protect himself from racketeers. Polyakov tries to help, but then Sechina herself disappears...