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 must heal the breach between father and daughter when Arthur ruins Carrie's job interview at a prestigious real-estate development firm by making a nuisance of himself in the company's lobby.