For me this movie does NOT make any sense. The antagonist must be a super human to be able to do what he does. He moves very fast INSIDE the wall of the house, (faster that a person running in the hallway) he's very silent(considering he is a very tall guy), and he can easily pull an adult size person with ease from the ceiling(considering he's paper thin with no muscle mass). On top of that NOBODY on the neighborhood heard the commotion inside the house even if they are clearly screaming and banging all the walls of the house.
This is on par with the movie "DONT BREATH" it is that level of bad logic