Obey me and reap the rewards...

Rating: 10/10 (3 October 2018)

I am a veteran horror movie watcher, see my list of "best supernatural horror movies", in the IMDB lists.
1) Turn the lights out.
2) Give this movie your FULL attention.
3) Take it very seriously, like you are watching a documentary.
4) Watch for what might matter later.
5) Be INVESTED, the dividends are amazing.
One aspect of a good horror is that everything else besides "the horror" is regular life, mudane, maybe even lonely. And by CONTRAST, the horror is that much more effective.
You want to feel real dread and shock, right? That's why we watch these movies, right? Obey and reap the rewards.
No matter how carefully you watch this movie, you will need to watch it again.