This game really has no plot at all — it's basically just a series of rather unvaried logic puzzles, the kind of thing you find in IQ tests. The ending was a slight let-down; it basically just stopped, which is a shame, because there were some reasonably effective attempts at building up atmosphere as I progressed through the puzzles. I didn't not enjoy the game, but I found it rather unsatisfying.
Trial-and-error seems to have been guarded against; you have to have seen your clue before you can input the puzzle's answer. The answers are randomised, too, so you can't just get a cheat sheet and plug in the answers.
I got stuck on one of the later puzzles, and because the description of the object I'd been using to solve the earlier puzzles had changed to "You see nothing special about <thing>", I thought the next clue would be elsewhere in the room. This was, in fact, a bug (and one which has now been reported to the author). I managed to get through it, though, since "hint" told me to examine things that were in the now-nondescript object, and sure enough this was where my clue was.
Couple of typos/spelling mistakes, nothing major. The game also let me strip naked without comment.