Special settlers from Lithuania - the Jew Chaim and the Russian Maria - give birth to a daughter in the Yakut frosts, whom her father names Isolde for romantic reasons. Maria was admitted to the tiny maternity ward of the village hospital at the same time as Mayys, a Yakut woman. Mayys raised Izochka and loved her like a daughter. Many years later, when neither Maria nor Mayis had been in the world for a long time, an old Yakut woman who called herself Maria was discovered in the Home for the Invalids...