Cold, hard facts are what make or break a case for the FBI. But when there's evidence that one of their own has been turned, there's more on the line than the truth. There are personal bonds that can be stretched to the limit. . .

After blacking out, a discharged weapon and hazy memories put FBI profiler Cynthia Deming at the scene of a crime: the execution of six federal witnesses against the mob. The one and only person she can turn to for help is her best friend, Boston forensic pathologist Charlie Foulkes. It's a relationship that no one on her team knows about-and it's about to be tested by danger and desire . . .

Charlie knows that Cynthia is no killer. But as they embark on a shadow investigation to clear her name, evidence surfaces implicating him. With the conviction of a mob boss hanging in the balance, they'll have to uncover who's framing them to take the fall, and what lines they're willing to cross-in their professional and personal lives-to prove that nothing will tear them apart.