This is overall a scary and interesting little game. I also had the issue with the note getting stuck on the screen, and I did try to use the escape key, but it did not work. I believe I perhaps have open the note more then one time, and I was perhaps not able to remove more then one of them. But I play though the game with the notes stuck on the screen. And it was overall pretty good. But you did not give me a lot time to read the last note, so I did not read it to the end.
If you don't know, you are in this jam allowed to fix bugs and upload the new version of the game.