Five friends gather for what should have been a casual night of drinks and debate. But as a heated argument erupts over the existence of God and demons, curiosity turns into a chilling test of faith. When one skeptic challenges the unknown with a daring invitation—"If God is real, there’d be a knock on the door"—the group laughs it off… until someone, or something, answers. What begins as an eerie coincidence spirals into a terrifying encounter, as an unseen force makes its presence known—culminating in a final knock that changes everything.