Plot Summary

Lucía is a young pregnant woman who lives secluded in a remote cabin in the middle of a forest with her grandmother, a mysterious and gloomy mute old woman, who communicates with her through enigmatic notes. Lucía arrived at her grandmother's inhospitable house escaping from a tortuous past: she was part of a cult that consisted of satanic fanatics of Black Metal, who committed a series of crimes. But, more than from that past, she did it fleeing from an imminent danger: El Monje Negro (The Black Monk), the dark and ruthless leader of the cult and father of the child she is expecting, who planned to murder both her and her baby for a devilish ritual.