This book was advertised as a serial killer thriller. I would have to call it a dark comedy because the characters are so unbelievably cartoonish.
The main character is a jealous buffoon who obviously has a personality disorder. We pick up the story after her serial killer career has already begun.
Not too much happens in this book until near the end where there is a climax that is laughable, in a good way.
Ultimately I enjoyed this book but not because it was a thriller.