Notorious serial killer the Upright Man has escaped from prison, and the FBI has no idea where to look for him. His brother, Ward Hopkins, suspects he may have been aided by the Straw Men, the shadowy organisation that killed Ward's parents. But apart from his girlfriend Nina, a discredited FBI agent, the only other person who believes the Straw Men exist is John Zandt, a former homicide cop turned lone vigilante obsessed with tracking down the killers of his daughter. Across America, sinister forces are stirring. Only Ward, John and Nina stand against this tide, and against the Upright Man.