If you have some familiarity with made for television movies from the 1970s, you will probably see that this movie got inspiration from the 1974 made for television thriller "Bad Ronald". To their credit, the makers of the newer movie did manage to change a lot of things so that their movie couldn't be labelled a blatant rip-off. But during the course of their changes, they almost completely stripped away anything that could make this movie good. I don't really want to list any spoilers, but I will say that there are a significant number of plot holes that someone during the production should have spotted and have patched up before filming started. (For example: How did the antagonist get food when there were periods where no one was living in the house?) But what really sinks the movie is how boring and uneventful most of it is. After setting up the situation in the first few minutes, the next hour or so has practically nothing happen that advances the plot - it's just one mysterious incident after another, none of which is particularly scary or creepy. Things do start to happen in the last twenty minutes, but it isn't enough to save things. If you want to see a superior movie that was inspired by "Bad Ronald", look for the Gary Busey movie "Hider in the House" instead.
