Summer 1837. In Pyatigorsk, the waters are as crowded as always. Among the visitors are the Fadeev family with their daughters (one of whom is the writer Elena Gan) and with their granddaughters Lelya (the future theosophist Helena Blavatsky) and Vera, the writer V. Belinsky, Princess and Princess Ligovsky, wounded officers, Moscow dandies, provincial landowners... Lieutenant Grigory Alexandrovich Pechorin comes to the waters two years after the failed duel with Grushnitsky to meet his sister Varya there. He plans to stay in Pyatigorsk for a short time, but mysterious murders begin to occur at the resort one after another. When danger begins to threaten the people who are dear to Pechorin, he and his friend Dr. Werner begin their own investigation...