An OK horror flick with annoying lack of believability and too easy to figure out

Rating: 6/10 (5 November 2015)

Let's start with the title. Sinister. Really. Has to be the most banal and boring horror movie title you can come up with. Let's call it Terror. or Horror. A far more apt title would have been 'Home Movie' or "The Hell Projector", or something vaguely amusing.
The jyst of the movie is that a struggling true crime writer, looking for inspiration, moves his entire family into a murder scene house.
Really.
What kind of PSYCHO would DO that???? They really don't explore that this author must be a frikken SOCIOPATH to even contemplate something like that...
And his oh so DUMB WIFE who doesn't figure this out until 3/4 of the way through the movie??? And she doesn't even figure it out, her kids tell her??? The only saving grace to this movie are the home movies themselves. Well filmed on super 8, they convey a real creepiness and add a ton of atmosphere. However, even these little movie in a movie gems are not without their flaws. For example: In one movie, a small girl saws through a foot thick tree limb, with the small saw at the end of a tree pruner (which, for the tool challenged, is meant for TWIGS and SMALL BRANCHES). Oh, and apparently in that same video, this little girl has managed to hog tie and noose up her entire family by herself...
This theme continues, and I'm sorry to give away the plot but the plot is so thin you would have to be severely mentally challenged to not get the secret 10 minutes into this movie. NONE of the murders could possibly have been committed by the children.
The amusing thing is, they have the perfect plot device to explain why: The children are serving a Dark Sumerian Demon Lord. Oh good! Except that all this supposedly powerful demon lord does is hang out in his scary clown mask and get his jollies watching his demon kids carry out the murders. Why didn't they just show him giving them help to subdue the family? Apparently he just teaches them all how to make, I dunno, foamy Sumerian knock out poison.
The ghostly kids, which run around haunting every new house targeted for mass murder, make no sense whatsoever. They are apparently trapped in the Haunted Projector? yet they are not. They apparently fear their demon lord, yet obey his every command. None of this is explained.