Springbok Radio's swinging-sixties spy-fi adaptation rolls on as Steed and Emma Peel hunt the killer of the British Venusian Society. Members keep dropping under a blinding flash of white light while gazing at the night sky -- and the trail leads to a very peculiar optician with a laser-equipped sports car and a personal grudge. Donald Monat and Diane Appleby star in this 1972 South African radio adaptation of the classic Patrick Macnee/Diana Rigg episode.