In this true-crime docuseries, veteran detective John Cameron investigates convicted serial killer Ed Edwards and uncovers mounting evidence that connects Edwards to some of the most infamous murder cases of the last 60 years, many of which are still unsolved. Convicted of five cold cases and found on the FBI's Most Wanted List, Edwards was still suspected of additional killings including ties to the claimed 37 kills case formally known as the Zodiac Killer case.Cameron is joined by Edwards's own grandson, Wayne Wolfe, as they search for the truth.