Francisco Arce Montes was a rejected loner with an addiction to harming young girls. He managed to evade justice for more than a quarter of a century while traveling to various countries throughout Europe and South America. It is now believed that Montes was responsible for more than two dozen killings. His victims were always women, and the attacks were always sexually motivated. In this shocking and fascinating account, Wensley Clarkson uncovers Montes’s full story, from his first attack on a young girl—which ultimately led to a consensual relationship and to her bearing his child—to his first brushes with the law and his eventual transcontinental reign of terror.