Television production, dramatisation of the science fiction short story by George Langelaan. The story of atomic scientist Bernard Marsden, who sees mysterious figures on the television screen one day. After the figures repeatedly appear, he learns that they are people who were directly at the epicentre of the atomic bomb explosion in Nagasaki and whose chain reaction transported them to the antiworld. Among them is Mary Seymour, with whom he falls in love. He decides to transport himself to the antiworld using the explosion of a small atomic bomb. However, his attempt might end tragically.