A serial killer is murdering women in the Whitechapel district of London. An American policeman is brought in to help Scotland Yard solve the case.

Lee Patterson
as Sam Lowry

Eddie Byrne
as Inspector O'Neill

Betty McDowall
as Anne Ford

Ewen Solon
as Sir David Rogers

John Le Mesurier
as Dr. Tranter

George Rose
as Clarke

Philip Leaver
as Music Hall Manager / O'Reilly

Barbara Burke
as Kitty Knowles

Anne Sharp
as Helen Morris

Denis Shaw
as Simes
CinemaSerf
Eddie Byrne is quite effective in this short and sweet adaptation of the "Jack the Ripper" story. Tempers amongst the populace run high as mutilated bodies are turning up in Whitechapel and the pressure is on his "Insp. O'Neill" to try to apprehend the culprit before the price of prostitutes skyrock...