This movie was a winner from the outset - it could not fail; having all the necessary ingredients of a super thriller - coupled with a cast that consisted of some of Britain's finest talent of the time. Indeed, we could never view Barry Foster quite the same afterwards! It also included an impeccable supporting cast that starred Jean Marsh, (who had risen to fame at about the same time with the success of the award-winning TV series 'Upstairs, Downstairs') Jimmy Gardner (of 10 Rillington Place fame - playing an effeminate porter!); Clive Swift, Billie Whitelaw, Anna Massey and Michael Bates. But the leads could not have been more well-chosen. Alec McCowen was simply superb as the handsome, and rather 'gentle' chief inspector, who is married to the subservient wife who uses him as her culinary guinea pig! Played by the marvellous Vivien Merchant, she gives us an entertaining performance, and amuses audiences by taking delight in reminding her wonderful husband (who, to use his own words; 'does not knock her about, or make her do degrading things') that it was 'he', that had put the poor Mr. Blaney behind bars - and not she! This film does have its amusing moments, but I think I am correct in saying that this was the very first movie to ever feature the showing of the full length murder of a victim in 'real time' as it were - something viewers today perhaps might not fully appreciate at just how shocking and disturbing this was at the time! Some of the younger viewers might also find some of the acting just a little dated and over-the-top; i.e. Jean Marsh - too 'prim' perhaps as the spinster secretary, and Mr. Blaney too 'angry a young man' as the young fellow down on his luck. But then this is how acting used to be; an art form, rather than the concentrating and the relying on special effects to gather audiences. It was far more improtant to see the actors' ability to interpret their roles in their own way. I believe this movie would still be a great shocker to anyone who hasn't already seen it - even today!
Highly recommended viewing!