Carol Ann Davis profiles fourteen women who used arsenic, manual strangulation, suffocation, lethal injection, multiple gunshots and stabbing to kill their victims. Each killer is the subject of a separate chapter, exploring her childhood, lifestyle and sexuality. There is analysis of the murder, the trial and the subsequent imprisonment of every woman. Ms. Davis comments on the classification of female killers, how society may underestimate dangerous women, and what it is that can turn ordinary women into killers.