Wow, this is hard! I've played a lot of deduction/puzzle games, but this one is really unique!
Visually, the style works very well! And the fact that you not only allowed every window to be drag and dropped anywhere, and made a functionnal note function, but also that you put the tutorial in the game very first menu... I can't rate below 5 on Presentation, it's executed perfectly.
This game may not work out for everyone because of the difficulty and the interface (basically button mashing, more different types of windows would be great if you ever update it). Personnaly, I loved it, great job to you! =D