The BWP didn't SCARE me, but it was the fact that you didn't see the witch that was the freakiest part. Leaves it up to the imagination. Plus the fact that there was no real script for the film. They sent the 3 ppl in the woods for real. It felt more real than the typical horror films.
I could put myself in the position of the characters way more easily than the typical 'scary movies'. I've been alone in the woods several times so I could imagine what I would do if I was in their position.
But the ending was the freaky part IMO, when they're running through house screaming, then you see the guy (forgot his name) standing in the corner by himself. You know what was about to happen next. It was very original IMO, and I liked it. Depsite the fact that some ppl thought it was bad and made them vomit because of the shaking cameras.