Some secrets are worth killing for…

When the body of a little girl, Sherri, is discovered in the woods, the small town of Windsor Brooke is quick to dismiss it as a tragic accident—everyone except the deputies who found her. With pressure mounting, the reluctant sheriff agrees to let the FBI assist, unaware that Sherri is just one of six girls who have vanished across multiple states.

FBI Agent Fox Anderson, fresh off a grueling case, is sent to investigate the disappearances. Exhausted and in desperate need of a break, he has no choice but to follow the trail of a predator who leaves nothing behind. Fox is convinced that Sherri holds the key to unraveling the mystery, but without solid leads, time is running out.

Kate Millard has spent years hiding in plain sight. By day, she runs a small-town shop. By night, she’s an assassin who eliminates the worst of the worst. The only person who knows the truth? Her best friend, Cara. But when Cara begs her to find and eliminate Sherri’s killer, Kate is thrust into a dangerous game—one that puts her right in the path of Agent Anderson.

Forced to work together, Kate and Fox are an unlikely pair—she is determined to hunt the killer before the FBI does, while he is relentless in his pursuit of justice. But as the walls between them begin to crumble, so does Kate’s carefully constructed world. And when another girl goes missing, she realizes the stakes are higher than ever.

Can Kate keep her deadly promise to Cara without losing everything—including her heart?