Filmed simultaneously with Lucio Fulci's, Zombie (1979), in the summer of 1979, and even reuses some of the same sets, but that film was released five months earlier.
Although never listed in the UK as an official video nasty, the pre-cert video was seized by Cambridgeshire Police and the dealer was tried under Section 2 of the Obscene Publications Act 1977, though eventually found not guilty. The film was released fully uncut in 2000.
Most of the music used in the soundtrack was from singer/songwriter Nico Fidenco's Emanuelle and the Last Cannibals (1977) soundtrack.
Ian McCulloch has stated on many occasions that he enjoyed making this movie more than Zombie Flesh Eaters (1979).
Banned under the obscenities law in most parts of Europe.