The woman everyone loves to hate is dead.

Dallas socialite Cynthia Langhorne is infamous for her beauty, her philanthropy, and her home wrecking—until she's found shot through the heart and posed nude at a fundraising ball. The case is high profile, and there's a bigger problem: Cindy is the wife of a decorated FBI special agent—the prime suspect in her murder.

When the Bureau sends FBI profiler Atticus Spenser and forensic psychiatrist Dr. Caitlin Cassidy to Texas on behalf of Dutch Langhorne, the special agent-turned-suspect, they're suspicious of the very man whose interests they're supposed to protect. But with a psycho hitman on their heels and a trail of evidence leading up the food chain, it quickly becomes clear this is no ordinary case. The truth points to someone—or something—larger than Spenser and Cassidy ever thought possible. Solving this case is no longer a matter of clearing Dutch's name—it's a matter of national security.