In different countries and in different eras, as if time and space had no power over him, a mysterious gray-haired old man appeared, who invited everyone to play a game of dice with him. The secret of his identity was shrouded in darkness: some saw him as an alchemist scientist, others considered him a warlock and accused him of communicating with the devil. Be that as it may, anyone who accepted his offer witnessed a series of strange, inexplicable events... In modern St. Petersburg, amateur detective Nadezhda Lebedeva comes into the hands of a stack of old Soviet newspapers, and what is surprising: the incidents described on their pages are strange way begin to repeat themselves in the present. Being a sensible person and not believing in mystical coincidences, Nadezhda wants to understand what is happening. And her search for truth leads her to the ill-fated dice...