The Monthly Film Bulletin wrote: "Greene gets strong performances from his cast (particularly from Jeremy Kemp as the psychotic Pierce); and if he is ill served by a script which too often falls back on coincidence to tie up its loose ends, it is all the more to his credit that, for the duration of the film at least, this weakness is barely noticeable."
Allmovie wrote: "a fragmentary "'60s" interpretation of a straightforward Bernard Toms novel ... Like many British films of its period, it seems more concerned with inducing pop-art headaches than simply telling its story.
Time Out wrote: "a well-written anecdote about police manners and methods, straight out of some TV cop series, but as viewed by Greene's wilfully wayward camera, it becomes a bizarre, quirkishly funny thriller which laces its documentary surface with a fine grain of fantasy. Much of Greene's later work disappointed, but here he displays a visual flair (gang violence in an echoing warehouse, murder among the wrecked cars in a scrapheap, seduction in a fantastically opulent boudoir) that would not entirely have shamed Welles in his
Lady from Shanghai [1947] mood.
The New York Times wrote: "If the muscular and sexy goings-on are excessive and irrational on occasion, some of the principals lend credible, physical support to their characterizations. Michael York ... is properly personable and confused as the harried Strange. Susan George, a comparative newcomer who is pert, snub-nosed and pretty, makes eroticism a pleasure, even if her sudden switch from promiscuity to Strange's everloving girl, remains a mystery. Jeremy Kemp is convincingly neurotic as the indomitable sergeant ... They all prove that
The Strange Affair is where the sensational action is, even if it is entirely strange and unbelievable. ==References==