From the FBI’s former assistant director, a shocking journey to the dark side of America’s highways, revealing the FBI Highway Serial Killings Initiative’s hunt for the long-haul truckers behind an astonishing 850 murders–and counting.

In 2004, the FBI was tipped off to a gruesome pattern of unsolved murders along American roadways. Today at least 850 homicides have been linked to a solitary breed of predators: long-haul truck drivers. They have been given names like the “Truck Stop Killer,” who rigged a traveling torture chamber in the rear of his truck and is suspected to have killed fifty women, and “The Interstate Strangler,” who once answered a phone call from his mother while killing one of his dozen victims.

The crisis was such that the FBI opened a special unit, the Highway Serial Killings Initiative. In many cases, the victims—often at-risk women—are picked up at truck stops in one jurisdiction, sexually assaulted and murdered in another, and dumped along a highway in a third place. The transient nature of the offenders and multiple jurisdictions involved make these cases incredibly difficult to solve.

Based on his own on-the-ground research and drawing on his twenty-five-year career as an FBI special agent, Frank Figliuzzi investigates the most terrifying cases. He also rides in a big-rig with a long-haul trucker for thousands of miles, gaining an intimate understanding of the life and habits of drivers and their roadside culture. And he interviews the courageous trafficked victims of these crimes, and their inspiring efforts to now help others avoid similar fates.