One cold St. Petersburg evening, an already middle-aged, intelligent man with an attractive appearance and graceful manners suddenly begins to kill women. Young and old. Beautiful and not so beautiful. Kill in a sophisticated, thoughtful, meaningful and planned manner. To kill with inhuman torture, from which people’s will and any noticeable desire to resist instantly breaks. He does this with icy calm, with absolute conviction of the urgent necessity of his mission. The man leaves the passports of the executed women next to their half-burned remains - so that it is easier for the police to identify the bodies of the murdered. And also a sign with the laconic inscription “Witch”. Investigators were knocked off their feet, looking for a creepy serial killer nicknamed the Inquisitor. They reject one version after another, trying to unravel the motives for the brutal murders. Everything is in vain. So who is this brutal killer? Another maniac - a schizophrenic or a new hero of our time, who was forced to take on the thankless burden of an executioner? A cold-blooded monster or an unfortunate person who simply couldn’t find another, less bloody way to save the world?