A perfect example of style over substance. The film is mainly comprised of beautiful ladies, beautiful ladies sprawled naked on beds, beautiful ladies fingering themselves, beautiful ladies kissing one another, beautiful ladies dancing, and beautiful lades getting slaughtered, with a plot very loosely tied in.
The gore scenes are lackluster, the plot's weak, and the scares are non-existant; but the editing, depth of field, lighting, jump cuts, and use of long lenses are all top-notch. I think the closest thing I could compare it to would be Death Laid an Egg. A much more pornographic Death Laid an Egg... with less chickens.
I also liked how it gave the giallo cliche of black gloves the bird, and just made it's killer wear black over his entire body. Oh, and it also stars Klaus Kinski, for all you Herzog nuts out there.