The story unfolds somewhere on the shore of the North Sea. Velga and Kirill grew up together, have known each other since childhood. But their feeling of falling in love has matured and fully revealed itself not so long ago. It seems that nothing is able to overshadow their carefree, happy existence, until Velga's older sister, Snow, arrives from the city on the anniversary of her mother's death.
Kolya and Sasha hide away in an old lodge in the middle of the forest. They are in love, and the world around seems strange and wonderful. But the idyll of the sunny summer days is continually disturbed by nightmares. Sasha dreams that she is submerged by a huge wave. Once they meet a mysterious married couple living in the neighbourhood. The Man and the Woman are very much like the young lovers. With their help, they try to understand their feelings.
A love story with young protagonists, the action unfolding somewhere in the north of Russia. Exposition of nature plays an integral part in the dramatic development of events and the criminal plot of the finale.