About the cel phone
Since nearly everything else in this movie is a misdirection, I was wondering if maybe this wasn't also.
Do we know for sure that it's Alice who is doing the actual filming? What if it's someone who is stalking her in the dark, who leaves the video on her phone as an implied threat. If Alice suspects that it's her neighbor, and also knows that he can break into her house fairly easily, would it make sense to hide the phone for future evidence?