What a nice adventure game. The blacklight ability is pretty cool; it let's the darkness have an important strength over the lit room.
There's a nice balance between the player's ability and the enemy. There's just enough sprint to meaningfully outmaneuver them, but it's not a cakewalk, and I still got caught a few times out of my own failure.
The story was a decent execution of a classic premise. Though, I found the dialogue from picking up the knife quite funny in how blunt it is.
Great work!