Local beauties begin popping up dead, murdered in a variety of gruesome ways, as authorities attempt to stop Mosaic's rampage.

[1][2] Future Academy Awards winner Carlo Rambaldi provided the special effects in the film such as the monster named Mosaic.

[2][3] Curti referred to the special effects as "crude" and was an "early hint of the tendency towards excess that will characterise Italian genre cinema of the decade"[2] Lou Castel was originally going to act in the film but was not allowed after being expelled from Italy in April 1972 due to his political views.

[4] Actor Gordon Mitchell stated that parts of the film were possibly shot in Bavaria, but not any of the scenes he was involved in.

[4] From retrospective reviews, AllMovie called the film "stupid, sickening, and obscene", but "seekers of psychotronic cinema will have a field day with this ridiculous Italian exploitation product.