I love how familiar the house is to any viewer who has spent a day with their relatives. From the wall paper, the furniture, the TVs, bathroom, bedrooms and so on, we've all been in a house like this at least once in our lives, be it in childhood, a family reunion, or just a recent visit.
It's because of this that "Housebound" exploits a fear of unease of being in such a familiar involvement with the subtlest of changes causing chills to go down the main character (and viewer)'s spine. A creaking door, a weird noise flowing through the pipes, wandering down in the basement, all of these are simple, subtle little fears and creeps, but it's what's underneath…