Her sister actually was a serial killer.
This book tells the story of two sisters who are completely different - aside from the fact that one can't help but kill her boyfriends. Like most serial killers, the sister definitely had a personality disorder. But her breath taking beauty and charm kept her very low on the suspect list. The older sister was left to literally clean up the mess, & what made it worse is that the killer sister started to date the older sisters boss who she was in love with it.
It really was an enjoyable read. I was engaged and read through it quite quickly because it kept me wanting to figure them out. The let down was really just how it ended. I was left with too many questions and no closure. So I recommend this book, just not the last page lol.