"The Killer must Kill Again" is an undermentioned 1975 Giallo directed by Luigi Cozzi. It's got all the elements of a classic yellow thriller; sex, violence, sexy violence and J&B Whiskey. Actually, it is short on one big element from the Giallo lexicon, red herrings. This is because from virtually the first frame of the film we are introduced with full face time to the story's gaunt, monastically coiffed killer. His motivations are the stuff of conjecture and that keeps the audience invested in the promise of a revealing finale of some sort.