Well filmed and acted. The cinematography is first class and enjoyable.
I found the story unfortunately a little too obvious (you know who did it immediately) and that it will be resolved in some way in the letter the murdered woman sent.
Also you have to suspend disbelief on numerous things...that the police wouldn't search the dead woman's room carefully (and find her love letters) is the most obvious one. There were others (it sure is easy to escape from British cops) but for what movies do you not have to suspend your disbelief a little?
It is too bad they couldn't have sharpened up the story just a bit because all the other values are excellent...acting superb camera work etc...
It rates a 7--it is leagues better than most of the quota British films of the 50s.
RECOMMEND