
Doug Heffernan puts in a long day's work delivering parcels and comes home each night to his loving wife, Carrie; unfortunately, he also comes home to his wacko father-in-law, Arthur.

Doug gives a cheesy card to his boss, whom he hardly knows, and gets chosen to roast him at a celebratory dinner.

An embarrassed Doug discovers that Carrie buys his clothes at big and tall shops, so he vows to lose 30 pounds.

Carrie starts taking college classes and Doug's sister Stephanie, who just returned to town, helps him adjust.

Doug splurges on a new car against Carrie's better judgment, and the bad decision immediately comes back to haunt them.