When a couple crashes their car in the mountains, they seek shelter in an isolated cabin. Its inhabitants are eager to make their guests feel right at home. But as the blizzard outside rages on and one night turns into several, the couple becomes less and less sure of what's true—about their hosts, themselves, and why that sound in the walls keeps getting louder. Tony Award®-winner Laurie Metcalf stars in Levi Holloway’s Grey House.