In the city of N-sk, the governor's daughter dies under mysterious circumstances. Investigator Oleg Nesterov arrives from Moscow in the city of NSK to clarify the circumstances of her death. In the place where the girl's body was found, a role-playing game based on the Karelo-Finnish epic "Kalevala" was taking place, and Vera, the chairman of the role-playing team, begins her investigation at the same time. However, new victims and a series of mysterious events are increasingly confusing Oleg and Vera. And soon Nesterov realizes that it's not just role-play players who play in N-sk. Both the banker, the prosecutor, and the governor are involved in some kind of strange gambling game, the meaning of which is hidden from the uninitiated.