The Special Crimes Unit finds itself targeted by a monster intent on destroying both Noah Bishop and his people.

The elite Special Crimes Unit, the FBI's most controversial and effective team, is a group pf mavericks and misfits trained to use their psychic abilities to hunt the worst monster imaginable - human ones. Led by the enigmatic Noah Bishop, the SCU has earned a reputation for pitting their skills and cunning against killers that other cops fear. But this time, Bishop and his agents face an enemy who has them in his sights, a trained sniper with a deadly plan - and more than one ace up his sleeve. It starts with an unspeakable series of grisly murders across three states, a trail of blood leading, finally to the small Tennessee town of Serenade. There two more brutal killings lure the SCU into what might be the ultimate trap. One of the first investigators on the scene, Special Agent Hollis Templeton, is willing to push herself as hard and as far as necessary. Risking more than her life to help and protect her SCU colleagues, Hollis must cope with her own psychic abilities, which are evloving in unprecedented ways, an attraction to the most complex man she's ever known, and a serial murder investigation that turns very, very personal. In her time with the SCU, Hollis has shown an uncanny ability to survive even the deadliest attacks. But what she can’t know is that this killer intends to destroy the team from within. The clock is ticking. The body count is rising. And as Bishop and his agents race to uncover the true identity of their enemy, not even their special senses can warm them just how bloody and how terrifyingly close, the truth will be.