American best friends Rachel Klein and Sarah Pullman travel to Tel Aviv to have fun. On the flight, they meet Kevin Reed, who invites them to Jerusalem. They accept and check into a hostel owned by Omar. Sarah and Rachel date Kevin and Omar respectively, and they go to a nightclub together. When they return to the hostel, they find that Jerusalem is under siege, a curfew has been imposed, and no one can leave, as they’re under attack by demons.