A 35mm print of this film, which contained the lost uncensored version, was found in the attic of a Portuguese dental clinic. The footage was restored and released on Blu-ray in 2016.
While filming the scene in which Mariangela Giordano was tied to a kitchen table, the telephone cords were put on her wrists and ankles so tight that they cut into her flesh. She had visible marks on those places for three months.
Most of the soundtrack is recycled from "Interrabang" (1969), a movie composer Berto Pisano had scored years earlier. Some pieces in this movie can be also heard in "Burial Ground," another movie produced by Gabriele Crisanti and scored by Pisano.
According to Wikipedia, a version containing XXX scenes called "Pesadelo em Veneza" exists in Brazil.
Fabio can be seen "reading" a real erotic book "The amorous drawings of the Marquis von Bayros".