I saw your comment you left on another page about your concept, and to be honnest I find it quite good. It is indeed very simple but the theme is respected and your work on the ambiance is awesome. I tried (with my friend) to make a similar game (on the mood more than the game design) but yours is really clean ! You can be proud of it ! ;)
The only point I noticed is that the computer was totally useless during my run, I just had to light the windows and lock the door.