In 1972, two priests are called to record an event at Jerusalem. It is revealed that Jewish, Muslim, and Christian priests were all called to perform an exorcism on a woman who died three days before. Her son claims she was calm at first when she returned from the grave to his home, but became violent later, injuring her husband. After failed attempts to cure her, the priests decide they have no choice but to kill the woman. In a final attempt, the woman screams while sprouting leather wings, just before a priest kills her with a derringer. The narrator states that the strange events of 1972 were the 'first proof' of a gateway to Hell in Jerusalem.
In the present, two Jewish American tourists, Rachel Klein (Yael Grobglas) and Sarah Pullman (Danielle Jadelyn), plan a vacation to Tel Aviv. Sarah's father gives her a Google Glass, and the rest of the movie is taken from the Glass's POV. On the plane, they meet a fellow American student named Kevin Reed (Yon Tumarkin). Kevin is fascinated by religious mythology, especially the Jinns of Islam, the Golem of Jewish mythology, and the undead or zombies, which he believes to all be manifestations of the same evil. He convinces Rachel and Sarah to travel with him and spend Yom Kippur at Jerusalem.
As Kevin and Sarah get close he shows Sarah a documentary he found on the internet with film footage of the 1972 exorcism.When they visit the Western Wall, Sarah wishes for her recently dead brother Joel to return. As soon as she puts the paper into the Wall, a swarm of black birds fly overhead. Despite warnings, they do leave the city. Kevin's fears are deemed to be madness and he is placed in a mental asylum. Can Sarah find way to rescue Kevin? Will they succeed in leaving the city before the gates of hell break open? With the End of Days upon them, is there any hope left for humanity?