'Death Carries a Cane' (1973) – Maurizio Pradeaux.

The seemingly ill-fated Susan Scott (Nieves Navarro), once again, is the sole witness to a gruesome, shadow-slaked slaying, and the prototypically black-hatted hate monger's motivations prove more oblique than usual! I have always found the vivacious Susan Scott to be one of the most sympathetic protagonists, and, quite frequently, hoped that the said black-gloved lunatic would just leave her be! This crepuscular, enjoyably grungy Giallo features juicy jugular jackanapes, a great number of pleasingly familiar Gialli faces, with handsome Robert Hoffman's innate ambivalence being put to handsome use! Death Carries a Cane is considerably livelier than its moniker may suggest, while the formula text lacks the invention of Gastaldi, this gritty Italian/Spanish co-production is a sexified, murky, mean-spirited mayhem machine! Highlights include the moody score, slinky Susan Scott's crackerjack Scream Queening, and the satisfyingly meaty throat gorings!!!!! FYI I much prefer the grislier German title 'Die Nacht der rollenden Köpfe'