Life’s good for deliveryman Doug Heffernan, until his newly widowed father-in-law, Arthur, moves in with him and his wife Carrie. Doug is no longer the king of his domain, and instead of having a big screen television in his recently renovated basement, he now has a crazy old man.
Doug is ecstatic when Arthur moves out of the basement and gets his own apartment following an argument between the two men. But Carrie is saddened by her father's move and wants Doug to ask him to return.