A humanoid alien lands on earth, and soon discovers he likes to eat Italian. Italian people, that is. Incompetent detective McSorely is the only one with a clue about what's going on, and even his grasp of the situation isn't too firm. The rest of the police force thinks he's crazy, while the alien continues sampling the Italian cuisine of New York City.

Big Bertha is the popular, full-figured owner of the community's most successful whorehouse and moonshine racketeering enterprise. Some guys decide to rob Big Bertha’s stash of money, but the local cops just happen to coincidentally be "visiting" the joint. With her money missing, Big Bertha announces the closure of her whorehouse, but nobody in town will let that happen!

Melvin Byrd, who dreams of being a scientist, is a Cape Kennedy "miniscule molecular particle surveillance monitor" - in short, a janitor. His job is to keep a major rocket project completely dust-free, and this he does with his own hilariously fantastic inventions - including a literal attack on dirt by a "knight on a white horse". In his work, he meets Judy, a chimp involved in a top-secret project, which leads Melvin into the one room strictly off-limits to him. Not until he has entered the project room does Melvin learn that any man entering it will be negatively ionized - making him fly like a bird.