After two tours in Afghanistan, former Army Sergeant Holly Austin takes no prisoners, but that doesn't mean she doesn't have a soft side. Even though HEARTS Agency already has a full caseload, she agreed to take on the case of Julia Fredrickson—a woman taken in broad daylight.

Detective Jack Tarek wouldn't usually turn to an investigative service to help him solve a case, but when another woman goes missing, he is desperate to solve the case. Unfortunately, Holly doesn't have much more information than Jack, but she definitely is a distraction—and one he can't resist. The leads on their cases might be running cold, but the attracting between the investigators is sizzling hot.

When the missing women are found dead, Julia's husband blames Holly and is determined to make her pay. And what better way than to take away the reason he thinks Holly didn't find his wife—Jack. As the case drags on, those close to the investigation grow increasingly impatient for answers and blur the lines between victim and perpetrator. And when Jack vanishes without a trace, just like the women, Holly and the HEARTS team have only hours to find him.