rivalry between brother lead to main story line . navy commander chuck prescott ( marshall thompson ) have develop the y12 aircraft to test how far man can go up in the atmosphere . his brother and lt. dan prescott ( bill edward ) and seem to be the best test pilot around and be choose to go up in the y12 . dan of course have a problem with take order and be also an over confident dare devil . on dan second flight and he hit over the 300 mile up comfort zone and his craft pass through a meteor dust storm . return to earth and dan become a monster that resemble 200 pound of bad asphalt . he also have a demand craving for blood and whether it be from farm animal or fellow human being . short runtime of an hour and seventeen minute while black and white with near stoic act . typical of low budget sci fi . round out the cast be marla landi and robert ayers and carl jaffe . noteworthy trivia represent about two month after this film be release while the russian put the real first man in space .