The Hillside Strangler becomes a media sensation, but Detective Grogan believes it's two men killing together. Is a woman slain near the beach the work of another serial killer? Detective Lange pursues the Skid Row Stabber to a darkened movie theater.

Kenneth Bianchi is arrested in Washington State, suspected of being the Hillside Strangler. Is his cousin his murder partner? A young girl disappears in Huntington Beach, the victim of a serial killer who appears on the TV show The Dating Game.

Kenneth Bianchi claims he has multiple personalities, and that "Steve" is the Hillside Strangler who kills with a partner. The Dating Game Killer is arrested but proving his guilt will not be easy. Detective Souza begins his pursuit of the Freeway Killer.