AllMovie

To study the aging process of humans, Martin (Ray Walston) pushes his own age forward fron 450 to 850 years--thereby making himself seventy in Earth Years. In this guise, Martin takes a job as a night watchman, and subsequently comes to the rescue of two elderly sisters (Lurene Tuttle, Nydia Westman) who are in danger of losing all their possessions. Unfortunately, "Old Man Martin" also ends up with a stolen sapphire which proves impossible to dispose of no matter how hard he tries!