The plot follows Elise Wasserman and detectives Karl Roebuck working with each other to obtain a serial killer that left the lower-half of a British prostitute and the upper-half human body of a French politician at the midpoint between France and the United Kingdom. Then they learn that the killer--that comes to be known that the"Truth Terrorist"--will be really on a moral crusade to emphasize several societal problems, terrorising both states in the process