Fun little detective game! I really enjoyed it, thought it was a clever little mystery to figure out.
Some notes on User Experience that I had during the game:
When I had found all the clues, I kept getting the all clues found screen when I changed suspect, which was a bit annoying.
It could be nice to have some indicator for the cursor to show if there was more info with a clue or not, as when I got stuck I ended up just clicking on things again and again till I found the right thing.
It could be nice to get a little summary of the entire case when you've solved it, to confirm that you've had the right thoughts, think similar to how it's done in the Golden Idol games.
These are just small nitpicks though, and I thoroughly enjoyed the game. The art is really good, the music at the end was really nice, and I think the game was a very clever interpretation of the theme. I'll also say I think the cat is a very nice addition, giving you a cute partner to support you.
Good job!