Black and white movie--a wealthy man learns the secret to using is cribbled legs and goes out into the fog at night and kills I through it was called the fog but I guess I was wrong any help out there

[QUOTE=tomatokitten;1589160]black and white movie--a wealthy man learns the secret to using is cribbled legs and goes out into the fog at night and kills I through it was called the fog but I guess I was wrong any help out there[/]it was a hindo teacher that taught him the secret of usng his legs when he used his legs he would leave a pool of blood

Sounds like Night Monster (1942) (http://www.imdb.com/title/tt0035124/)