The gray-haired holy fool wanders around Moscow, annoying the rich who come in large numbers with speeches that no one wants to hear... Swarms of bats fly out of the trunks of carsharing cars, revealing what no one wants to see. A ruthless serial killer uploads videos of sophisticated crimes to the Web, and everyone watches them. They don't want to, but they are watching. Freezing in horror, and trying to figure out who will be the next victim? How to catch the one who challenged society? This is to be done by Major Felix Verbin, but in order to solve the case, he needs to find out what the big black dog has to do with the murders that shocked Moscow...