Clean-cut young man (in jackets and skinny ties) hangs out with the beatnik kids and plays the bongos, but really gets off on beating and sexually assaulting vulnerable housewives. Standard police thriller jazzed up with slang; it uses the beatnik milieu only as ruse, it's main aim being a marriage in crisis (the rapist targets a police detective's wife, and two months later she's pregnant but doesn't know who the father is). Low-budget potboiler from MGM was probably a second-biller, though it has gleaming black-and-white cinematography from Walter Castle and some good performances. Steve Cochran is perfectly cast as the detective with the hysterical wife, Ray Danton is way-gone-cool as the scuba-diving psychopath (his M.O. is to call on women pretending he owes their husbands money) and Mamie Van Doren is terrific as a soon-to-be divorcée who wouldn't mind being man-handled. Co-written by Richard Matheson (!) and Lewis Meltzer, the action gets too crazy, dig, near the finish, but for the most part it's a rough little jewel, dad. ** from ****