Police detective Dave Robicheaux faces off with the most diabolical villain he has ever faced in the twentieth installment of the Dave Robicheaux series. Sadistic serial killer Asa Surette avoids the death penalty for murders he committed while capital punishment was banned. But when Robicheaux's daughter Alafair writes a series of articles implicating Surrette in other murders which could get him death, he decides to escape prison and make her pay. Can Robicheaux save his daughter?