The Lost Skeleton of Cadavra

It's 1961 and Dr. Paul Armstrong (Larry Blamire) and his lovely wife Betty (Fay Masterson) head into the mountains in search of a recently fallen meteor containing the rare element atmosphereum. Paul needs it to help him with his science work, but Betty'd just as soon have a vacation. Also in the area, sinister Dr. Roger Fleming (Brian Howe) asks trusty Ranger Brad (Dan Conroy) the whereabouts of Cadavra Cave, mysterious home to rumors of a legend of the Lost Skeleton." That night, both parties witness what appears to be yet another meteor falling. Immediately after, a local farmer is killed by a horrible, unseen thing. Is there a connection? Indeed there is. The second meteor is actually a disabled alien spaceship with a strange couple from the planet Marva, Krobar (Andrew Parks) and Lattis (Susan McConnell)...