Lesya Polyakova lives with her grandmother (a former artist, and now the creator of jewelry). She’s soaking up the last days of summer before ninth grade and maintains an utterly unpopular blog about criminal stories. One day, an eccentric friend of her grandmother, whom everyone in whispers calls Gavryusha, bursts in crying: a bloody-red stain has started spreading across the ceiling in her apartment… Lesya and her friends begin an investigation!