There are important rules that must be obeyed. Don't talk back, Don't leave the grounds, have fun! For a group of girls kept in a house following the rules can mean life or death in this Spanish horror film.
Lidia and her father, Pablo, return to the family lighthouse after her mother’s death. Pablo, aware of Lidia's fragile emotional balance, worries for a possible relapse after her suicide attempt. Lidia, annoyed by her father's lack of trust, will discover that something’s not right at the Lighthouse, and that danger awaits for them if they do not find out the truth.
