Upon his return from Vietnam, an ex-soldier finds his neighborhood has deteriorated badly, and is being terrorized by a vicious street gang. He calls some of his GI buddies, and…

Sheriff Dan Gillis has a nice life with his wife, the teacher Janet Gillis, in the small coastal and friendly town of Potter's Bluff. When visitors are mysterious killed in…

An intelligent pulse of electricity is moving from house to house. It terrorizes the occupants by taking control of the appliances, either killing them or causing them to wreck the…