"Manhunters" is a 2006 American crime drama television series that aired on A&E. Developed by Jeff Nathanson, the show is based on the book "Manhunters: Inside the Hunt for Serial Killers" by John E. Douglas and Mark Olshaker. The series provides a unique perspective on the world of serial killers, exploring the investigative techniques used by the FBI to track and apprehend these heinous criminals.