Take a quick trip through history, and you see no shortage of flashy female psychopaths. Elizabeth Báthory, who killed between eighty and a few hundred people, mostly women, in the late sixteenth and early seventeenth centuries, before being walled inside a castle tower. Chile’s La Quintrala, colonialism’s poster girl, who slaughtered about forty indigenous people. Darya Saltykova, Muscovite, who dispatched a hundred or so serfs, mostly girls, in the eighteenth century. Delphine LaLaurie, who tortured and killed numerous slaves in her nineteenth-century New Orleans home. Women like these punctuate time with their bloody body count, yet people are still disinclined to believe. Even as Victorian women slayed whole families with heaping helpings of arsenic to reap health insurance monies; even as Aileen Wuornos shot her seven johns; and even as Stacey Castor’s matricide got her fifteen minutes of fame on, people didn’t want to believe. Feminism comes to all things, it seems, but it comes to recognizing homicidal rage the slowest.