When Wade Williams acquired the rights to Plan 9 from Outer Space (1957) in 1982, Edward D. Wood Jr.'s widow, Kathy Wood, told him this never-released film was being held by a post-production house because the lab fees hadn't been paid. Williams paid the fees and acquired this film, finally releasing it 23 years after it was filmed.
The single photo on the police station wall is that of Edward D. Wood Jr.. An unconvincing attempt has been made to turn it into a wanted poster by sticking a piece of paper above it with the word 'Wanted' written on it.
The film was produced under the title "Revenge of the Dead".
Although intended as a sequel to Bride of the Monster (1955), this film featured only two characters from that film, Kelton and Lobo. It also claims that Lt. Bradford had worked on the earlier case when he appeared nowhere in the first film. There was no room for Harvey B. Dunn to reprise his earlier role. Instead, he was given a small supporting role as a frightened motorist who encounters one of the ghouls.
According to Paul Marco, the film had a theatrical premiere in 1959, but Edward D. Wood Jr. felt it needed further editorial changes. A letter from Wood to Anthony Cardoza, the film's associate producer, records some of his plans for the film. He wanted to edit out part of Criswell's scenes and replace them with footage of Bela Lugosi. He was also considering a title change. It is unlikely that the film had more than a preview showing and/or brief release in the 1950s, and Wood was never able to make his intended changes.