The film tells the story of a 12-year-old girl named Aglaya, who is full of creative ambitions and dreams. Despite her young age, she has written an entire novel about the magical land of "Kolhandra" and now dreams of turning it into a film. During the summer holidays, she arrives at her country house, where she immediately gathers the neighborhood children for filming. Aglaya immerses her friends in the world of her fantasies — they dive into their roles, search for locations, and develop makeup and costumes. However, creating a magical world in reality turns out to be much more difficult than she thought.