The First Man Into Space

Dan Prescott, a headstrong test pilot, ignore his orders from his commanding officer and brother and flies an experimental rocket higher into space than any man has ever been before. Out of radio contact with mission control, and alone in the vast expanse of space, his craft is bombarded with deadly cosmic rays.

A few hours later the wreckage of his spacecraft is found but with no signs of its occupant. Reports then follow of first cattle then humans being maimed and killed; in each case the victim being drained of blood...