When a young woman turns up dead along the Mississippi River, rising-star Detective Kate Rosetti quickly realizes itās the work of a notorious cross-country serial killer.
To complicate matters, Kateās troublemaking sister turns up out of the blue in need of a place to live, a strikingly handsome FBI agent appears at the crime scene, convinced this case belongs to him, and a certain British billionaire is a little too interested in the murderā¦and Kate.
As she begins to close in on the killer, the investigation takes a turn for the personal. Itās one riddle after the next, and if Kate canāt sort out the murdererās identity before his next kill, sheāll be up next on the autopsy table.