

When an off-duty police officer in San Francisco happens upon a minor theft at a lumberyard one Sunday afternoon, he unwittingly jumpstarts an investigation into one of California's deadliest, most depraved serial killers: Leonard Lake and Charles Ng.
In the fall of 1994, an elementary school principal is found tied to a tree outside Oklahoma City, launching a nationwide manhunt for Franklin Delano Floyd, and exposing a staggering, decades-long reign of terror and abuse.