The arrival of a strange lodger in a family boarding house coincides with a series of macabre murders. Suspicion falls on the stranger.
This is one of the best films inspired by the story of Jack the Ripper. Its success stems above all from the quality of the direction by John Brahm, a master of German B films, who succeeded in combining an almost Expressionist aesthetic with fantasy conveyed through suggestion and nuance, very similar in style to Jacques Tourneur. The film also owes much to its leading actor, the amazing Laird Cregar, whose appearance, both baby-faced and sinister, Brahm exploited in all its ambiguity.