“In this Harmonic August of the year of our Lord 1987” Cody Lennox, a forty-year-old American writer, arrives in London. Having lost interest in life with the death of his wife, he seeks oblivion - or even death - in drunken revelry. Two opposing sides - Kane and the demon Satonis - are trying to get Cody into their hands. It would seem, what does some mortal mean in the confrontation of these forces? But only with its help can one hope to defeat the enemy and not only save oneself from death, but also save our entire world. Because these days, accidents are mysteriously intertwined, and a real hunt begins for the person capable of managing them.