A series of strange events and misfortunes befalls Ilya Kondratiev. At an evening meeting of classmates, he communicates with his ex-girlfriend Natasha, and the next day he is informed that the girl died under the wheels of a train. Some time later, Ilya is stopped on the highway by a road patrol and plants drugs in the car, which is why Ilya has to give a written undertaking not to leave the place. Following this, his wife Olga is arrested - allegedly for drunk driving. To top it all off, Ilya discovers an ambush in his own apartment... Who organized this systematic persecution? Having analyzed all the latest events, Ilya realizes that he inadvertently disturbed someone else’s secret hidden in the past and now she begins to show her wolfish grin...