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, Carrie and Arthur head out to the airport to visit with Doug's parents while they have a short layover at Kennedy Airport on their way to Montreal. While there, his parents ask him to sign their living will, making him the one responsible for pulling the plug. When his sister Stephanie gets wind of this, she is offended that she wasn't the one asked to be responsible.