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

The well-being of Stepan Sudakov’s family, which he himself believes in, turns out to be shaky. Practical, prudent, successful in business, Sudakov discovers that the family foundations he guarded in the walls of his apartment, in his nest, collapse one after another, and his own children are to blame.

The well-being of Stepan Sudakov’s family, which he himself believes in, turns out to be shaky. Practical, prudent, successful in business, Sudakov discovers that the family foundations he guarded in the walls of his apartment, in his nest, collapse one after another, and his own children are to blame.

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