Very creepy and atmospheric. The sound design was very good.
I struggled to find one of the keys because I didn't realize you could open the drawers at first. Other than that, it was a very cool experience.
I think that maybe there could be some sort of subtle way of teaching the player they can interact with the drawers.
Ignoring the object interaction silhouettes for a moment (which in all honesty, I may have just missed for the drawers on my first play through), I felt as though it was made apparent to me that you could interact with the lights and radios through the events of them turning on/off on their own which led me to investigate them. For example here are a couple of experiences I had while playing:
Perhaps if you had some event where some drawers opened on their own, it would call attention to the player that they can be opened and prompt the player to look in the drawers as well without directly telling them to look in drawers.