It scared me real time :D. Very nice horror theme fitting. Unfortunately web build seems to break time to time (specifically camera movement), I guess nothing can be done with that.
I feel like there just missing an interactive part with the world of the game, there are things on scene but I didn't figure out if there anything to do with them. It would be really nice to have some interactivity, maybe to throw stuff around to mislead the monster.
I also think that it would be nice to add some obvious sound level indicator (not necessarily UI, maybe like sound ways from the player in game).
Overall I think for a game jam it a solid prototype and it would be nice to see a full game later :)