Two escaped convicts are found hiding in a rocketship built by a renegade inventor, who forces them to become the crew for a trip to the Moon. Also on board, as inadvertent stowaways, are his assistant and his secretary; and none of them are aware that the inventor is actually a Lunarian explorer sent to Earth by the dying Lunar civilization and the only remaining male member of that civilization.

A married college professor decides to seduce her student, whom she hired as a handyman for her yacht. The hesitant student succumbs to his buxom professor, but their romance is interrupted by her corrupt husband and a masked murderer.