This criminal case of terrible murders kept growing more monstrous and terrifying in its details. And police captain Ekaterina Petrovska, an employee of the Press Center of the Moscow Region Main Directorate of Internal Affairs, could no longer sleep at night—after she saw photographs of young women, the victims of the “May Killer.” Two years ago, at the height of the investigation, they arrested Rodion Shadrin, a mentally ill man, and sentenced him to life in a psychiatric hospital. The city and the whole region sighed with relief. But then another month of May came—along with another double murder that Shadrin simply couldn’t have committed, because he was in a specialized clinic. So the maniac is still at large? And what do his messages mean? Strange, unrelated objects were left on the victims’ bodies: shards of clay pottery, an old alarm clock, pillowcases from cushions, and a leather whip from an adult store…