After a devastating wildfire ravages the countryside, a secluded couple finds refuge in their cabin in the desert, huddling for warmth on a frigid night. With the world outside still burning, they finally begin to relax—until a mysterious knock echoes through the silence. No one else is supposed to be out there. Who—or what—could it be? As tensions rise, they must confront the horrors lurking in the darkness, testing both their survival instincts and their trust in each other.