Devil girl from mars on a winter evening, assorted guests are at their supper in a remote scottish inn.
suddenly, a brilliant light descends; a spaceship has landed on the moors, and the group is trapped within an invisible wall surrounding the house and garden! the headless ghost while holidaying in britain, exchange students bill, ronnie and ingrid visit the allegedly-haunted ambrose castle.
ronnie persuades fellow-american bill and the danish ingrid to hide with him in the castle, in order to spend the night investigating.
konga the sole survivor of a plane crash in africa, dr decker returns from the jungle with a baby chimpanzee, konga.
during the course of his experiments, decker discovers a serum that causes konga to grow to the size of a gorilla and to obey his will! timeslip a near-lifeless body is recovered from the thames, shot in the back.
science reporter delaney identifies the victim as stephen rayner a nuclear physicist who works at a nearby research institute but when he visits the institute hes shocked to find rayner alive and well!.