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.
Carrie asks Doug to join her at a dinner party for a Japanese client. But when he arrives ravenous after not eating all day, he discovers there's no dinner and tries to eat whatever he can find.