Bloody Message Puzzle

Overview
The Bloody Message Puzzle is a short mystery found in the Resident Evil 7 Teaser Demo: Beginning Hour. It involves finding out about the deaths of five victims in the Baker house.

To complete the puzzle you need to combine the Object Made Of Celluloid  with the Dummy Finger to make the Dummy's Left Hand and collect the Old Notebook. Next, you need to go to five specific locations (see Gallery below), inspect the Left Hand and point the finger towards the location, in which a new entry detailing the murders will be added to the book. Finding all five will reward the player with the Dirty Coin for use in the actual game.