Criminalist Ellie Matthews' latest case pushes her to the brink, both personally and professionally, as she throws herself into the hunt for a twisted killer.



Determined to leave her traumatic past behind and turn over a new leaf, former criminalist Ellie Matthews is taking some time for herself. Competitive running and a budding relationship with FBI Agent Vic Manetti are working wonders. But after she stumbles upon a woman brutally murdered on a local running trail, Ellie dives headfirst back into a dangerous world.



A photo of the victim's gruesome killing explodes online, and a string of chilling threats quickly thrusts Ellie into a desperate race to unmask the culprit before any more innocents die. But to solve the case, she'll need to salvage her strained relationship with her old partner, Detective Nick Baxter.



With tensions threatening to boil over and loyalties pushed to the breaking point, Ellie, Nick and Agent Manetti must delve into the twisted mind of an elusive murderer. But what they discover will shock them all, and it might be too much for Ellie to bear . . .



Contains mature themes.