 While in Wales visiting her husband James (Sean Bean), Adele (Maria Bello) tries to fix her relationship with her teenager daughter Sarah (Sophie Stuckey). They see a weird memorial without the plate and with the name "Annwyn" marked, and the local Dafydd (Maurice Roëves) explains that this would be the place where people go after dying in accordance with the Welsh mythology. Later, Sarah vanishes on the beach and the daughter of the local fanatic shepherd, Ebrill (Abigail Stone), who died fifty years ago, appears in her place. Adele makes a research trying to find how to rescue her daughter from Annway.