Anatema plot
Juana is a nun with a strong personality, shaped by a profound paranormal experience in her past. When she receives a mysterious assignment from the Archdiocese, she is sent to an ancient church in historic Madrid. This church is built above a network of corridors whose origins remain unknown. There, Juana discovers that something lies within the depths of the building older than all the legends told about this place. An ancient evil lurks in the darkness beneath the church—and has begun to seep into the outside world.