People are disappearing in the cities of the Kalinin region. Someone had previously been seen boarding a crimson tram, another had left on a black trolleybus. And near schools, a black Volga 21 is periodically spotted, which the traffic police cannot catch up with. Where does this mysterious technique come from and where does it evaporate? The police are powerless, citizens are in panic. Who is behind the mysterious disappearances? CIA agents? Dangerous cultists? Or evil spirits? Investigator Valery Kamyshev from the Internal Affairs Directorate of the Kalinin Regional Executive Committee will have to find out.