Luciano Ercoli - La Morte Cammina Con I Tacchi Alti aka Death Walks On High Heels (1971)

Death Walks in High Heels (La Morte cammina con i tacchi alti, 1971) is a twisted tale that has a complicated plot structure guaranteed to surprise, but all the classic elements of the giallo are here in spades, from black-gloved murderer to psychosexual weirdness. Scott stars as high-class Parisian stripper Nicole Rochard, who is being stalked with threatening phone calls culminating in a visit from a blue-eyed maniac wielding a straight razor, going on about some diamonds.
When she discovers blue contact lenses in the possession of her lover Michel (Simon Andreu), Nicole panics and leaves the continent for England with her obsessive fan, surgeon Dr. Robert Matthews (Frank Wolff). But the bodies continue to pile up, and matters become even more complicated when Nicole receives a threatening visit from Dr. Matthews' wife Vanessa (Claudie Lange).

By far the more brutal film of the pair (Death Walks At Midnight being the other), it's also the most sexually twisted, with throwaway cross-dressing, sexual obsession and POV voyeurism shots aplenty. It's frequently witty, with brazen silliness showing up at times; one example of the latter is a drunken Michel being taken by the police to throw up out a window; the film cuts to an overhead shot of the stoic bobby being splattered with vomit below. The middle-aged inspector (Carlo Gentili) disables suspects with karate chops, raising the kitsch factor far up. That comic relief is necessary since several of the killings are truly horrific, with savage cruelties being inflicted in quite convincing manner. The central romance between Matthews and Nicole is steamy though somewhat nonsexual; the highlight of their relationship is their participation in an even more erotic bout of eating than that in Richardson's Tom Jones.