An unknown killer is trying to sow a pandemic of fear in the city. All attempts by the police to catch him are doomed to failure. Who is he? Is it a puppet of unknown evil creatures from parallel spaces? And wasn’t he driven to these terrible atrocities by an irrepressible desire to lift the veil between our worlds? So isn’t it better for a person to stop in front of the wall protecting him from the terrible Knowledge, run away from it and return to the Gospel Commandments? The exciting plot of the novel, its mysticism and, at the same time, realism, as well as deep philosophical overtones, doom the work to become a bestseller. This is the best continuation of the traditions of Gogol and Bulgakov in modern literature.