I think there is a bug in section 1 B... I read the note in the office but the cutscene doesn't appear. Is it a bug? Or did I something wrong?
I can't really tell you since I don't know what you did so far. Are you sure you've read the right note? (There are 2 readable sheets of paper in said office and there is pretty much no way to miss the cutscene.) If it doesn't work, you could also start a new game and (*spoilers*) head straight to the cellar to bypass that area from before.
If you have access to the room with the writing on the wall and the "don't let ..."-note, you should have a crowbar already which means you're not doing anything wrong or are missing something. You just went a different path. (So you're technically in section 2 now.) There is no "standard" way to play the game, it's changing by your choices, where you go etc. So you can't see everything in just one playthrough. I guess next you'll have some puzzle work to do. I hope I was able to clear things up for you a little bit. :-)