If you haven't seen this movie, and you have any tolerance for scary movies, stop reading and go watch this movie

Let's make a high stress movie in one of the scariest environments possible.

"Okay but what if the main character has legit psychological trauma that we watch" I mean sure.

"And what if we add some of the freakiest and most unexpected jump scares before they get to the scary part?". Okay..

"And what if this naturally scary environment also had monsters?". What sort of writer are you?

"And what if we didn't introduce the actors to the monsters until we were actually filming the scene, so their reactions are as legitimate as possible?" That would certainly be horrifying

"And what if the monsters were humanoid, and the humans were monstrous?" You seem to have some experience being a monstrous human.

"And what if we made multiple endings, each of them equally ambiguous about the main characters future?" Are you a monster? You are a monster aren't you.