Sisters September and July share an intense bond, speaking in a secret language and keeping the outside world at a distance. After September is suspended from school, their mother brings them to a remote house on the Irish coast—where July begins to resist her sister’s increasingly sadistic control.
The story follows fisherman Ed Collier, who is highly protective over his family, which includes wife Claire and daughter Abbie. However, when a rich young man by the name of Ryan Wilson starts to take an interest in his daughter, Ed feels her becoming increasingly distant and fears he may lose her for good.
