In the state residence "Mayendorf estate" there was a tragedy. At a private party on the occasion of the birthday of the son of oligarch Melnikov, a double murder was committed! Among the suspects are quite high-status persons: the daughter of the deputy prime minister, the son of an oil oligarch, the offspring of nouveau riche, whose fortune is measured in billions ... The investigation is entrusted to a "special person" - detective Sergei Krasnov, who deals with just "delicate" cases of especially important people. During the investigation, his attention is drawn to the strange behavior of Ruslan Abyshev, a representative of the famous Caucasian clan...