在她的警察前夫闯入她的生活前，这名女子还正和家人幸福的生活在一起。但随着前夫的降临，一段不堪回首的童年往事被揭开，埋藏在心底深处的恐惧又再次缠了上来。但此时此刻，她早已经孤立无援，只能直面这个对她造成...

Fleeing from their violent father, siblings Lucía and Adrián take refuge in a remote mansion. With the help of a hidden micro-camera on a cat, Lucía uncovers a terrifying secret: their neighbors are part of a criminal network that kidnaps teenage girls to make snuff films, and they intend to get rid of the siblings. As Lucía fights to protect her brother, she must face a dark family curse that follows them into their newfound sanctuary.

When, at the beginning of Deus Irae, Father Javier stares at a crucifix, his expressions and his hands suggest that the nerves are consuming him. A flashback reveals that this priest devotes his life to visiting families that claim to have seen things that do not belong to this world and cleansing their homes from the demons that try to possess them. But, upon returning to those houses, he notices that the evidence is always destroyed. This way, he discovers that a clan is after him, and must decide whether to hide from them or join them. In times when horror cinema tends to fall into the hands of directors that seek to build narratives that are introspective and close to reality, Pedro Cristiani goes back to old-school horror, where gore and the physical experience are above any other kind of feeling. A cinema that places the camera in front of the faces of the bloodiest demons and, instead of giving logic to them, chooses to face them whatever the cost.