Mickey's overjoyed when steel magnate Phineas T. Slipsy rents all the hotel's vacant rooms, but what Mickey doesn't know is that Slipsy is a kleptomaniac.
While the Gradys are away Nora's irresponsible brother Bobby and Sammy are left in charge. Deciding to make extra money they rent the family quarters to a businessman. When Mickey returns early they try to hide misdeed.