The heroes of this story are the inhabitants of the village of Purnema, located on the shores of the White Sea. The events of their lives take place by the rhythm of the sea: the tide comes in, and the tide goes out, and nothing can change this order of things.

The film is available only on the territory of the Russian Federation.

Anya is 17 years old and she spends her last school summer with relatives on the island of Sviyazhsk. In the evenings she goes out for a walk.