2 versions of ending!!!
I've seen this movie for the first time in 1986, and I was feeling uncomfortable for most of the movie, because of a young girl killing off her family with the correlation of her undead sister. By the climax, I was surely thrown off by Mary slicing up that anchovie pizza with the cutter, then running that cutter against the cable lines to prevent her frightened mom from calling fo help. Very creepy and effective.
Now, for the ending: in 1986, Jennifer knocks several times, needs permission for her mother to allow her to appear. That's an aspect when it comes to the undead, like vampires: they can only enter your house if you believe in them and
give them the rights to enter, otherwise they cannot. Anyway, when the girl rises at the foot of the bed, she smiles a sinister smile and her eyes burn into
the viewer with shadowy explications. When I saw it again in 1998, Jennifer rises and smiles sort of slyly, but no spookily, as when I saw it in 1986. I thought this was an anomaly, but when I bought the dvd last year and viewed it again, Jennifer smiles the dark smile as her eyes grow strangely dark. Does anyone else notice this, or have seen both versions? I find this uncanny.