This is quite a suspenseful drama set amongst the murderous goings-on of "Jack the Ripper" in Whitechapel in 19th century London. Laird Cregan is "Slade" - an imposing, secretive, man who takes up lodgings with Sir Cedric Hardwicke and his wife Sara Allgood. Gradually his nocturnal habits begin to arouse her suspicion, and coupled with the ongoing "Ripper" fears, they begin to suspect that he may not be on the level. These tensions begin to heighten when "Slade" meets their music-hall star niece "Kitty" (Merle Oberon) who also lodges with them. They enlist the help of "Insp. Warwick" (George Sanders) who is already working on the "Ripper" case (and who is also quite keen on "Kitty" too!), and together they have to act quickly to prevent more killings. It's atmospheric and well paced; the cast all deliver well and the ending - it reminded me a bit of "Phantom of the Opera" (1943) - is quite a climactic affair. Cregan has something sinister about him from the start - and his eyes do much of his acting for him here - full of menace. Oberon plays the damsel in distress quite convincingly, too. John Brahm and Barré Lyndon have collaborated well here and it is well worth a watch on a dark night!