...The part with " I saw her face;" that kept me awake at night.
Honestly, that scene was the purest/simplest expression of its genre I've seen in modern films, and it's a boon that it was documented in that film. Any camp fire story, or scary movie, or true story that ACTUALLY lurks with us, has that factor.
It's that sudden feeling of terror and panic brought on by something unknown, and just around the corner, that really gets us. I think that was the scene that got everyone. I can still picture it right now, haha.