A lie, a long-ago affair, a dark desire--everyone has secrets they take to the grave. No one knows that better than FBI special agent Smoky Barrett. But what secret was a very private young woman keeping that led to her very public murder? That's the question Smoky and her handpicked team of experienced manhunters are summoned to answer by the FBI director himself.

As a mother, Smoky knows the pain of losing a child. As a cop with her own twisted past, she takes every murder personally. Brilliant, merciless, righteous, the killer Smoky is hunting this time is on his own personal mission. For in his eyes no one is innocent; everyone harbors a secret sin. Soon Smoky will have to face the secret she's carefully hidden even from her own team--and confront a relentless killer who knows her flaws with murderous intimacy.