'The Case of the Scorpion's Tail' (1971) – Sergio Martino.

Made during an especially successful period for the versatile, creative, multi-talented film-maker Sergio Martino, 'The Case of the Scorpions Tale' is yet another gleefully glamorous, joyously Jet-setting, bodaciously blood-letting Giallo classic from one of Italy's most consistently entertaining genre film-makers. Opening in a somewhat cartoonish fashion with the explosion of a model-sized Jet aeroplane, this thrillingly gory Greek-set Giallo very swiftly becomes a teasingly convoluted, crimson-soaked, stiletto-cool thriller, as the heady, head-scratchingly perfidious plot spiralling decadently around the sublimely pretty, not-so innocent head of Cleo Dupont (Anita Strindberg) rapidly develops into a razor-edged, wickedly warped whodunnit with even more delicious kinks than juicily vivacious Janine Reynard's luxuriant profundity of firebrand hair!!! Steamy adultery, grisly murder, salacious sadism, orgiastic drug use, copious measures of that ubiquitous terror tipple J&B Whiskey, and all that signature Giallo goodness fizzing darkly alongside a magnetically sinister turn by that aorta-palpitatingly handsome, raven-eyed devil George Hilton, Sergio Martino's majestically malevolent mise-en-scène further electrified with yet another ear-wormingly wonderful score by mood-maestro Bruno Nicolai that almost certainly guarantees that any hungrily sin-seeking, gore-guzzling Giallo-Hounds will deliriously discover that the beguilingly poisonous 'The Case of the Scorpion's Tail' remains a triumphantly titillating terror tale that still actively delivers a scintillating sting far more deadly than most.