At the end of the 19th century, in the foggy city of K., people begin to disappear from the streets without a trace or explanation. The police think it’s coincidence, but Countess Yelskaya—a medium and owner of a séance parlor—receives worrying signals and suspects the involvement of supernatural forces. Investigator Odoevsky works on the case, but the evidence grows less and less, while tension in the city increases. Do the dead have the answers, or is there someone hiding in the city who carries out these night attacks?