The Case with All the Unknowns

Lesya Polyakova lives with her grandmother (a former artist, now a jewelry maker), enjoying the summer before the ninth grade and running a completely unpopular blog about criminal stories. One day, her grandmother's eccentric friend, whom everyone calls Gavryusha behind her back, rushes in tears: a bloody red stain is spreading across the ceiling in her apartment… Lesya and her friends begin an investigation!