Scientist Jack Costain (John Saxon) and his aides investigate a
meteorite in the British countryside, discovering that it is an alien
device from Ganymede, a moon of Jupiter. They capture a tall alien and
take it to their lab, but it escapes. Shortly thereafter, teenage girls
begin to go missing after answering an advertisement in 'Bikini Girl'
magazine. It turns out the alien wants to use women from Earth for
breeding purposes.[

plenty of radio equipment...81 talking pictures....