At the center of the story - a 12-year-old boy Fedya and his mother. In early childhood, Fedya suffered from severe meningitis and lost her hearing. But her mom has always been there - it seems like she's able to carry the whole world on her shoulders and keep all the love of this world in her heart. A special role in the life of this family is entrusted to music teacher Aleksei Borozdin - thanks to his lessons, the deaf boy began to speak and managed to study in a gymnasium.