Liz Catalano shares an apartment with her cousin and best friend, Andrea, known as Andie. Andie gives Liz a 23 and Me kit for her birthday, but when she logs into the website to obtain her results she finds out that her DNA is not related to Andie at all. And thus a long held family secret is revealed - Liz was actually adopted as a baby and her parents never shared this with her. In her search for her biological family, she uncovers a potential link to a serial killer who has been murdering young women for 40 years. Is Liz related to a serial killer, and is she in any danger herself?

This is a tense and concise thriller which alternates between the stories of the victims and that of Liz in her search for answers about her biological family. Liz is a very likeable protagonist, and her need to find her family drives the plot, and is both reasonable and understandable. The shock of discovering she is adopted, and her need to understand where she came from is portrayed in a very realistic way.

For me personally, however, the chapters describing the ordeal of the victims and the murderer's enjoyment in tracking, capturing and tormenting his victims are very disturbing. It is just not the type of novel that I enjoy reading. So while it is very well-conceived and written, it just wasn't for me.

Recommended for those who enjoy a fast-paced, tense thriller, and who are not bothered by the subject matter.