Eddie can't believe it when he found three furry monsters living in his basement. Fiend, Haggis and Norman are the stinkiest and craziest friends he could wish for! When Eddie sees a chance for the monsters to live upstairs he decides to teach them human manners so they can stay for good. But when Fiend, Haggis and Norman start acting like serious grown-ups the whole family want things to go back to normal - quickly!