Captain Ben Cutlet (Will Hay) likes to spin yarns about all of his {fake} seafaring adventures, one day his false past comes to bite him as he is bluffed into captaining the Rob Roy at sea, the Rob Roy being barely sea worthy and doomed to be wrecked by a crafty shipping agent
An old man dies in his shack while performing satanic rites. Shortly afterward, a strange man shows up claiming to be the old man's nephew. When he moves in, strange things begin to happen, like a man being attacked by his own dog
Classic low budget sci-fi complete with a reanimated dead astronaut impregnated with alien embryos and a blood-sucking space monster produced by Gene Corman. The monster suit was used again in "Teenage Caveman"