CULT MOVIE REVIEW: Paranormal Activity

But while penning the sequel, Halloween 2 (1981), the writers (including JC) came up with the very specific notion that Laurie Strode was actually Michael Myers' sister and that the Shape kept returning to Haddonfield to finish the job of murdering siblings that he had begun in 1963.   

Although interesting, this new idea eliminated much of the deliberate ambiguity about the Bogeyman and even, in a way, made Halloween retroactively a bit less scary.  Suddenly, Michael was just offing family members.  Sisters, then nieces, apparently.   With the nebulous Shape's raison d'etre known, he was no longer a scintillating mystery.  He became a known and quantifiable factor instead.  We knew his goal; we knew his endgame.  He became...predictable.