I included this demo into my first 3 Scary Games video! Really scary and interesting, but I had a couple problems with the game. For one, for some reason the dpi was super low for me. But the bigger issue was that I couldn't complete the demo because I couldn't find the key! Otherwise, really scary - loved how the whole area turned to flesh when the monster heard you.
It's the third game in the video at 14:18. Here's the video: