Redemption. The atonement of guilt. Is it possible for killers to reform and change their lives? Or are murderers always evil? For decades, Dr. Michael Stone has explored the nature of evil, examining the heinous crimes people commit. But now Dr. Stone will use his scale to explore a new question: is evil a constant state? Is redemption possible? Can a killer change? Dr. Stone interviews Billy Wayne Sinclair, a convicted murderer sentenced to death; Archie McCafferty, a self admitted killer given three life terms; Daniel Nieto, a life time gangster and Helen Prejan, a spiritual counselor who has witnessed multiple executions. He will explore their crimes and their lives.