Nice one. You've nailed that creepy, unsettling tone quite well with sparing use of music and sound effects.
Only issue I found is that the context-sensitive icons seemed to be pretty random - it almost always went to the look icon; very seldom would the use/take icon trigger for an object I could pick up. I'd also appreciate a talk icon.
Overall, quite slick - especially for a jam game. The single-click interface is a nice idea, and the whole thing has this "murder evening" feel to it which I really enjoyed.
Great references, too: Donnie Darko, The Shining, Clerks :D