USSR, 1970s. Lena has a real talent for writing - her school essays reflect with incredible precision and warmth not only the world around her and her loved ones, but also her personal experiences, dreams, and hopes. Her mother works in documentary film, and she has her own problems and dreams. It so happened that the daughter's adolescence coincides with her mother's midlife crisis. The story of their touching relationship is told with a kind smile and notes of sadness.
Schoolgirl Masha and her parents are forced to move from Moscow to Novoorsk. After the elite gymnasium on Rublevka, it is not easy for a girl to put up with the rules of a provincial school. At her new school, she becomes a victim of bullying — sophisticated psychological and physical harassment by classmates. It becomes especially harsh because of Masha's feelings for Chris's boyfriend, the main star and rebel of the school. At the suggestion of Chris, the nickname "Crybaby" was glued to Masha. To cope with problems and tears, the heroine is helped only by music and a band that she has put together with other students.
