Richard Matheson was first represented on the Twilight Zone with the December 11, 1959 episode "And When the Sky Was Opened," adapted by Rod Serling from Matheson's short story "Disappearing Act." After an experimental space flight crash-lands, the three crew members -- who have miraculously survived -- begin experiencing strange sensations. As the episode develops, it becomes obvious that no one but the crewmen have any memory of the crash. . .and before long, no one has any memory whatsoever of the crew itself! This tricky, complex set-up was brilliantly handled by director Douglas Heyes (making his own Twilight Zone debut) and by a topnotch cast, including Rod Taylor, Jim Hutton, and Charles Aidman as the benighted astronauts (also, keep an eye out for Sue Randall, aka "Miss Landers" on Leave It to Beaver.