The idea has potential. The game is fairly simple though and the puzzles aren't that complicated if you know, what to look for. I liked the fact, that despite the art style being rather monochromatic (I don't mean this as a bad thing, quite the opposite, I enjoyed it very much) it was clear where to go and what to look for (thanks to glowsticks and red buttons). I know that you 'd be able to push those puzzles even further given more time :)
Nice job.
Oh, and some foreboding music in the background would be also great, but that's me nitpicking :D