MGM seldom delved into atmospheric B-film mysteries depicting "London By Night", since those kind of thrillers were usually made by studios like RKO and Universal during the '30s and '40s.
But this atmospheric mystery, filmed entirely on the MGM back lot, is a welcome diversion that graced the bottom half of double feature bills back in 1937.
GEORGE MURPHY is a man who wants to go to Paris in the morning (he tells us so about ten times during the course of the story), but reluctantly stays behind to solve a murder case involving a man who uses disguises and an umbrella to do his dastardly deeds.
RITA JOHNSON is the pretty socialite with the strict father (MONTAGUE LOVE) and her household includes LEO G. CARROL. GEORGE ZUCCO is on the good side of the law (for a change) as a Scotland Yard detective.
It's an entertaining little trifle that will keep you guessing as to the outcome after a few murders along the way. Unfortunately, VIRGINIA FIELD, as a Cockney barmaid, overacts outrageously in a desperate attempt to provide comic relief. The dog Corky is much better at that.