When the woman and her son mysteriously disappear, FBI agent Daria Francis is sent to a small town in North Dakota called the Gate of Satan. He wants to track down the suspect number one, religious fanatic Jackson Pritchard, husband and missing father. However, when Francis and the local agent Colt arrive at Pritchard's dark estate, they discover in the cellar something that exceeds their wildest expectations.

This horror takes place within 24 hours, violently hits the viewer with sudden twists of action, crossing the boundaries of his genre, holding him in constant tension and a sense of fear ...