Heartbreaker by Julie Garwood

An FBI agent and a priest are drawn into a deadly game with a killer who calls himself “Heartbreaker.”

When Father Tommy Madden hears a chilling confession from a man claiming he will kill again, he turns to his childhood friend, FBI agent Nick Buchanan, for help. The killer’s next target is revealed to be Tommy’s sister, Laurant — a woman determined to fight for her life even as she’s drawn to the man protecting her.

As the investigation unfolds, the line between hunter and hunted blurs. Nick and Laurant must stay one step ahead of a murderer who always seems to be watching — and whose final move could destroy them both.