Daineka has always been skeptical of fortune tellers and visited Madame Judith’s salon for company to support her friend Olga. She had no idea that a visit to a clairvoyant would set off a whole chain of strange, inexplicable and frightening events. Madame Judith promised that Olga would soon see her husband, who disappeared three years ago, and he unexpectedly appeared on screen in a popular television series! Attempts to find out how it is connected with the filming led the girls to the mysterious Blue Stone, which, according to legend, rose from the bottom of Lake Pleshcheyevo. On the shore, Daineka and Olga discovered a dying girl. But how is it connected with Sergei’s disappearance? You can understand this only by unraveling the mystery of the Blue Stone...