A perfect setting for a mystery is scary, spooky, and makes you look behind your shoulder to see if anything is there. I think that a perfect setting for a mystey would be in the middle of the woods at midnight. This is a good setting because many weird things happen in the woods. Here is a description. A dark pine woods on a Saturday night, only the charecter is out in the woods. They are all alone aand here so many creepy sounds. This is my description of a mysterious setting and why it would be perfect.