Several generations of a big happy family live one-way life at the seaside. Only Masha, the author of women's novels, goes through a creative crisis. "There is no happiness - she says. - There is drama, romance, crime, but no happiness". However, her niece, Lyubava is a direct refutation of these words: she lives in a lovely house with a perfect husband and a wonderful son... But the day she finds out about her husband cheating on her, Lyubava's life turns into hell. What if happiness does not exist?