I love you.
The graphics were adequate, the music fit like a glove, and I really had to put alot of thought and effort into figuring this puzzle out.
HOWEVER.
One that that always pisses me off about these games is that you have to guess what the creator was thinking. Take for instance the ventilation grate. Why couldn't I just smack the hell out of it with the hammer and break it open? Why did I NEED the swiss army knife? I could have easily drove myself nuts trying to flip the mattress over, its such an easy place to think to look.
Then there's one thing I always hope for but never get. The chance to just bypass the puzzle entirely. The "fuck this! I play the game MY WAY!" option. For example it would have been nice to remove the speaker panelling and rip some live wires out of it then put them against the door to just short the whole thing out.
Its a neat little game. Good job. I'll look forward to room 2, but I fully expect to lose interest before room 3.