Tyler only screams when he stays at his daddy's house. Nathan isn't sure why his son can't sleep through the night, but he's determined to find out why. It's been just over a year since a messy divorce uprooted the life Nathan Cooley had so perfectly plotted for himself. Now, his job is taking off, he's moved into a new house, and he gets to spend weekends with his five-year-old son. Only now things are different again. Because something lurks inside Tyler's bedroom, right behind his closet door. And it won't leave until it has what it wants.