Can't rate this yet till I get thru my queue, but wanted to leave a comment while still fresh off playing - very creative concept, genuinely made me anxious as hell, but also very buggy!
Bugs: My first playthru I was actually confused because I apparently broke it somehow (my best guess is I did so by pushing the furniture around when I was still figuring out what to do/how to interact with stuff). The bug that happened is that the hand seemed to get "confused" and could not go through the door. If I closed the door, it would move to the closest open door, but if I didn't close the door it would just hang out in the doorway. I survived two nights like this - on the third night, without an enemy even spawning, I died pretty much immediately lol.
My second playthru (did not restart the game, just hit start/restart to see what would happen) actually worked closer to what I think was intended, although there were still a few hiccups. I died this time despite having successfully closed the door on the monster, which was a bit confusing.
During the second playthru, most of the time closing the door would cause the roar/shake sfx and the monster to disappear, but a few times it just moved to the next door instead, which was also a little confusing. If this isn't a bug, I'd probably try and make some indication of why this happens (I thought maybe it was proximity, but it happened sometimes even when I closed the door right on the monster at the last minute) so the player can plan and adjust.
I think, for increasing difficulty, it might be more interesting to have more doors in the room to contend with after each night, rather than just a faster monster (though the speed increase is good and I would keep it). Something about having to rush to shut a new door immediately after having closed one creates a real sense of tension and urgency, and I think you can push that further.
Wow this turned into a book. Overall, very well done! The vibe is extremely spooky and the mechanics paired with the sounds and camera shake make for a genuinely anxiety inducing experience.