The Blonde Dies First is a mix of slasher, sibling drama, friendship bonding, and demon chasing.  Besides the killing, definitely reads YA.  First I sussed out the "demon" about halfway through.  Very obvious.  While I enjoyed the plot, I felt the friends made critical decisions based on non solid clues and some actions didn't make sense when it came to the initial handling of the demon.  I was annoyed with all the flimsy references the movie they kept talking about.  The twin relationship and how it changed was discussed well, as well as, the bond between the friends.  Very goals. Overall, I enjoyed the book, but did not love it and was happy to finally finish to move on.  I very much enjoyed Joelle's other book Their Viscous Games, so this book paled in comparison.