They often say the greatest Gialli (excessively violent Italian murder mysteries) were only produced during the early 70s. Well, they are probably right. You can hardly refer to the late-80s "Arabella the Black Angel" as a good giallo, but boy is it ever entertaining!!! In fact, the whole giallo sub-plot is nothing but a mere footnote, since the film is primarily a semi-pornographic thriller full of demented characters with perverted fetishes and kinky after-dark habits.
Beautiful and voluptuous nymph Arabella, or Deborah, roams the streets at night and visits secluded bondage/orgy clubs because her beloved husband Francesco is paralyzed and can't physically please her. The reason why he's in a wheelchair is actually quite hilarious and, moreover, Arabella's own stupid fault! During a raid at the orgy club, she's raped by a filthy copper who subsequently lets her go, but only to show up at her front gate the next day for a second portion of joyful sex! Arabella knocks him dead with a hammer, because she knows Francesco is watching, and apparently this vile act sparks up their sex life again! Francesco encourages his wife to pick up random strangers for sex, while he writes her adventures down in a new erotic novel, but meanwhile there's also an unseen killer with shiny black gloves butchering Arabella's bed partners with a pair of scissors.
The plot continues to make utterly bonkers twists and turns, since the traumatized police inspector Gina (with massively oversized glasses to illustrate just how feminist she is) gets put on the scissor-murders case and her lesbian lover promptly backstabs her, but it's all too to insane and useless to write down. The only thing you need to know is that "Arabella the Black Angel" is purely unhinged Italian exploitation trash! The obvious giallo trademarks (black gloves, ominous music, vicious gore, etc) are definitely there, but quintessential things like suspense and surprise denouements are sorely missing. The identity of the scissor-killer is easy to guess, but it doesn't matter all that much, because the beauty of Tiní Cansino's continuous nakedness compensates for all the shortcomings. Director Stelvio Massi was a prolific Poliziotesschi director during the seventies, but during the 80s he had to revert to making sleazy flicks like this one.