The Unknown is directed by Henry Levin and adapted to screenplay by Charles O'Neal and Dwight Babcock from the radio play written by Malcolm Boylan and Julian Harmon. It stars Karen Morley, Jim Bannon and Jeff Donnell. Music is by Alexander Steinert and cinematography by Henry Freulich.
A wonderfully good old fashioned spooky house mystery finds a group of relatives arrive at a big mansion estate for the reading of a will. Pretty soon strange occurrences and accidents are the order of the night.
Clocking in at just seventy minutes in run time, Levin's picture doesn't... read the rest.