I liked the little story, good premise. The game is quite difficult at first because you aren't sure what killed you, afterward it becomes a little bit easier when you learn to spot the enemies. I would've liked to see a reset button in game, with how much the player is expected to die. It's also not really clear what the goal is, at first I thought I had to collect all the notes, since it's mentioned in the UI and passed by the end a couple of times.
I was also expecting not to attract the enemies unless I was really close when the flashlight is turned off since you could turn it on and off, but it doesn't seem to be the case.
Fun little game!