Nastya Sablina is turning sixteen, and, filled with emotion, she begins to reflect on "the most important day of her life."

A 13-year-old girl grows up between a boxing ring and the street. Her friends are guys who kill and rob. In the 1990s the whole city hates them, but for Masha they are the best people in the world, who love and protect her. She sings them jazz and dreams of becoming a singer. But one day Masha learns who they actually are and what they have done to her life and family. She matures, leaves the small city for Moscow, trying to break with her past. But one day the past stands directly before her.