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.