In post-civil war Spain, Narcisa, a novice, arrives at an old convent, converted into a girls’ school, to become a teacher.

In Seville, Juan is starting to enjoy his weekends outside of prison when tragedy strikes: his little girl is killed in what looks like an accident.

Madrid, June 1991. After celebrating a session of Ouija with her friends, Verónica is besieged by dangerous supernatural presences that threaten to harm her entire family.