I wouldn't really call this a sequel, more of an expansion that only really exists to provide answers to some of the questions posed in the first movie. The acting was pretty meh, the characters weren't really defined enough to make me care about them, and most importantly, it's not scary. For a horror movie that's a pretty big problem, titanic even... if I wanted to watch the daily coming and goings to a suburban family via CCTV I'd kill myself to rid the world of my uselessness, or put on
Paranormal Activity 2, whichever is easier.