Cult Italian giallo directed by Sergio Martino which finds the wife of an ambassador at the centre of a slew of gruesome murders. Living in Vienna, American socialite Julie Wardh (Edwige Fenech) is tangled in a web of deceit and adultery, involving her husband, her ex-boyfriend and her new lover, and, to make matters worse, it looks like one of her lovers could be the wanted serial killer terrorising the city...