In Moscow's Bezymyanny Lane, in the basement of a former soap factory, a century-old burial was found. The remains belong to seven, two of them children, and all of them were shot in the back of the head with a Mauser. This long-standing murder-execution led to a blood feud and a series of new crimes, no less terrible and mysterious. The terrible family history of the Astakhov soap makers, who pass on their business and their secret through the female line: from Annette to Aurora, Alexandra, Alice, extremely interested senior police lieutenant Dmitry Luzhkov, as well as Ekaterina Petrovskaya, a criminal columnist for the press center of the Central Internal Affairs Directorate, and her old friend Sergei Meshchersky. The three of them take on the investigation of a grim crime, the statute of limitations of which has long passed ...