A teen girl version of Dexter meets the high stakes danger and mystery of The Girl with the Dragon Tattoo in this "unique, beautifully twisted, and rich" (#1 New York Times bestselling author, Jennifer L. Armentrout) debut.

Lane is a typical teenager. Loving family. Good grades. After-school job at the local animal hospital. Martial arts enthusiast. But her secret obsession is studying serial killers. She understands them, knows what makes them tick.

Why?

Because she might be one herself.

Lane channels her dark impulses by hunting criminals and delivering...