Der unheimliche Untermieter

Not a very unique nor special film in any way, and very typical early 1950s Hollywood fare with a back-lot version of London, and plenty of French can-can style dancing for titillation.

Not boring either, and Jack Palance is fine as the mysterious lodger who may or may not be Jack the Ripper. But he's done better, and is not a good enough reason to pick up this film. In fact, the only particularly good reason to pick it up is if you wish to collect all varieties of Jack the Ripper films available, or if you want the double-feature Midnight Movie release of it because it also has the superior thriller, A Blueprint for Murder.