Lucy Chen and Tim Bradford - to most people, she was just his rookie. But if you looked a little closer, there had always been something more between them. What happens when a sudden undercover assignment turns everything upside down... and forces Lucy and Tim to question the feelings they've been trying to ignore? As the mission becomes more dangerous than anything they've faced before, the line between duty and emotion begins to blur.

Sergeant Tim Bradford has one job: find the ghost who left seven bodies across Los Angeles and has never once been caught. The problem? He already knows her. Two months ago she walked into a bar and into his life - sharp, dangerous, and impossible to forget. Six nights. No last name. Gone before dawn. Her name is Lucy Chen. She is everything his badge stands against. And she is the one thing he can't bring himself to give up. The case is closing in. The choice is coming. When the man who never breaks the rules falls for the woman who never follows them - who breaks first?