Spooky gameplay.
The moment-to-moment searching in the dark just to run into the monster and get jumpscared and have to hide felt nicely made. One caveat would be that while hiding the monster takes a while to actually leave you alone again. It quickly goes from scary to a bit boring sitting under a bed or in a closet; if he just wandered off a bit quicker/sooner it'd help a lot.
I could not for the life of me find more than a single key fragment. I'm not sure where all the keys were to the rooms either; I found 1 in the basement and that's it.
The audio was nice. The music was nice and ambient and the SFX (especially the singer cue when you run into the monster) worked well. The characters were neat (JUSTICE FOR NESTER) and I liked the overall story.
Nice game. Proper horror.