Dr. Walter Hollingworth, noted criminologist and convicted murderer offers his help to Virgil McLendon and Tina Rant as they work to solve cases that look to be copycat killings based on those of Hollingsworth. Each murder is based on one of the doctor's own crime scenes, but the good doctor enjoys mind games and riddles as he pushes Virgil to find the answers, teasing and prodding at the investigators. The crime scenes are adding up and the body...