Interesting. I jumped around here and there in the video. To me. it had the sense of a Blair Witch video. Have to investigate this more.
EDIT: It is very interesting indeed. After watching the whole thing I seem to remember something about this years ago. Long before Blair Witch. However, it still has the same feel to it. Maybe because in the beginning the narrator Ferdinand Mayne said you would see the video as recorded no reenactments. There were several reenactments. A woman with 2 children and a third on the way, keeps the kids in the house in their bedrooms while strangers have the run of the house. Plus strange, possibly dangerous, paranormal things going on. When she does move the kids, she moves them to the porch? Good Mom. Should have sent the kids to the neighbor's house or relatives.
Some of the streaks of light look like the UFO "rods" and video that Ghost1 made in some basement (I think).
I can't say the story isn't real but I can't say I believe it either. Just my thoughts.