On 18 March 1999, Wesley Shermantine and Loren Herzog were arrested, and later convicted, of multiple murders in and around the Linden area of California. The pair are known as the Speed Freak Killers and their reign of terror spanned for 15 years from 1984 to 1999.

This series focuses on the estimated 60 victims, and their families, along with the investigations surrounding the cases. Why did two best friends evolve from hunting animals to hunting humans? How did two serial killers get away with potentially dozens of murders for more than a decade?

Hosted by Investigative Crime Journalist Shane Waters & Wendy Cee