New York Times bestselling author Laura Griffin chills with her newest novel of suspense and romance in the award-winning Tracers series, when a woman police detective in a small Texas town discovers that the only thing more terrifying than a killer you don’t know . . . is the one you do.

Motive, opportunity, and no alibi—it seems close to a slam-dunk. But while rookie detective Allison Doyle’s department has ID’d a suspect in a young woman’s vicious murder, she is uneasy. Then legendary FBI profiler Mark Wolfe shows up with a startling theory: if he’s right, the real murderer is an elusive psychopath just days away from another kill.

Using Allison’s contacts at the Delphi Center crime lab, Wolfe is finally in striking distance of the monster he’s pursued for ten years. Except that as they work together, Wolfe finds the ambitious, stubborn woman a tempting distraction. And with this brutal predator, every thread of evidence can make the difference between being the hunter . . . and the prey.