I was attracted by its title. I didn't this book was written after the film, which was weird. Most of the time, it's the book which is adapted into movies.
However, the whole thing was a mess. The massacre scene was super grotesque. It was brutal and unbearable to read (but I managed to finish it). I didn't like the female character one bit (the one who could see ghosts). Everyone was flat. I didn't feel anything while reading about their tragic events and deaths.
It was not a waste to read this book, but I almost gave up several time. Thread carefully at your own risk. Be aware of all trigger warnings!!