First-grader Tanechka lives in a Yakut village with her grandparents. Although her father has not written to her for a long time, the girl has no doubt that he invisibly helps her every time she needs him. Every morning in the village house begins with the anthem of the USSR on the radio, telling about Brezhnev's meeting with the oil workers. However, Tanechka is sure that “every new day reveals something unknown and secret” and wants to tell about those events of her childhood that still cause her, already an adult woman, either tears or great joy. Looking out the window at her peers, the wise heroine asks: “Why do children play all the time? When do they think? Probably never, that's why they are happy? "
