“You cannot free yourself from the thirst to acquire into your property what is impossible to obtain.” After a corporate holiday, the director of the Markon company disappeared. Alevtina Dolgushina, an accountant at the company, suspects that he was killed and actress Donna Luna is to blame. She showed up to the corporate party wearing an ominous mirror mask. Her hypnotic gaze captivated everyone present, and after the performance she disappeared without a trace. Detective-medium Astra Eltsova agrees to help Dolgushina in her search for the boss. Three centuries ago, at the court of Princess Sophia, Donna Luna, a secret agent of the British crown, already appeared. She was looking for Magisterium, a mysterious powder also called “red lion.” Is it really all happening again?