I rated this film 6/10 as just above average.The other reviewer disclosed the murderer but anyone who watches this film could easily work it out.This because there are relatively few characters to choose from and apart from the obvious "red herring" it could only be one person.Audiences are so versed and educated in modern crime thrillers so they steer past the obvious, to wit: 1.Do not suspect the obvious hero whom the author points you towards.2.Ignore slightly sinister extras who have little or no dialogue - the audience cannot feel a rapprochement with them.3.When the motive appears in the screenplay suspect the character with the most to gain.
I vaguely remember Paul Carpenter (the lead actor) who was a Canadian actor from Montreal and who appeared quite regularly on British TV in the 50s and early 60s but his resume is strictly "B" rated and the British actors are similarly not of the first box office magnitude.The whole film reminds me of a typical "B" feature production value and budget film of the 50s in my youth (I am 64 now) when the cinema goer first had a cartoon, then Pathe News, then the "B" feature and finally "The Big Film", for the price of admission.
I always like to look at the cars, taxis, lack of parking restrictions in London shown in films during the 50s and of course the clothes fashions and manner of speaking.It's part of the fascination for me and why I like to buy dvds of this vintage.