Radik was forced to return to his hometown for health reasons. Having settled in a new apartment, Radik was forced to meet a girl named Zalsi, who had blue eyes and blue hair. It was precisely he who was “forced to meet”: it was difficult to get rid of such a girl, she was too talkative and intrusive. But Radik was an unsociable and quiet person, and did not want to communicate with anyone. Why the girl behaved this way, Radik found out only after he found expensive jewelry forgotten by the previous owner in his new apartment. Zalsi, having learned about his find, immediately wanted to see it. And then Radik received a letter inviting him to visit an abandoned mansion...