Estados Unidos, década de 1970. Seguimos al brillante Jack durante un período de 12 años, descubriendo los asesinatos que marcarán su evolución como asesino en serie. La historia se vive desde el punto de vista de Jack, quien considera que cada uno de sus asesinatos es una obra de arte en sí misma.

"The Devil Worshippers" investigates Satanism and focuses on allegations that there are satanic cults committing crimes and murders in the United States. “Police have been skeptical when investigating these acts, just as we are in reporting them. But there is no question that something is going on out there, and that’s sufficient reason for ‘20/20’ to look into it.”

Geraldo Rivera investigates allegations of a widespread Satanic underground in the United States.

Something is happening. It is happening nationally and locally. It is an ideology that manifests itself in graveyard desecrations, animal mutilations, human sacrifices and suicide. It categorically involves drug/ alcohol abuse, pornography, sexual perversion, physical/mental abuse, heavy metal music and drinking blood. And it is highly organized. Satanic/Occult organizations (churches) have corporate charters, own buildings, maintain national/ international computer networks, publish magazines/newsletters and hire professional public relations firms to polish their public image. It is both generational and self-styled. Some groups are esoteric while others are pantheistic.