Three astronauts land on earth after a successful space mission. The events that unfold are not only mysterious, but gruesome. Something other worldly has them under it's influence. Something this world will probably never be aware of. Based on an episode of the popular American anthology series 'Twilight Zone'. " It is a dimension as vast as space and as timeless as infinity. It is the middle ground between light and shadow, between science and superstition, and it lies between the pit of man's fears, and the summit of his knowledge. This is the dimension of imagination. It is an area which we call ... The Twilight Zone. "