Henry Willows is a middle-aged divorcee contentedly living alone. Feathers really fly as his orderly life is disrupted when his teenage son Matthew, whom he has not seen for seven years, appears out of the blue, intending to stay. While Henry has never quite seen himself as the typical loving parent, he reluctantly agrees to give the arrangement a try. The differences in age and temperament between father and son produce hilarious situations as they attempt to adjust to life together. Matthew is a typical teenager who likes rock music, girls, telling lies and drinking his father's whiskey. From the moment he moves in, life for poor Henry will never be the same.
Henry and Matthew's relationship is strained further when Matthew becomes an animal rights activist.
Henry comes home to find the house full of Matthew's friends—more of an orgy than a party, says Henry—but rather than throw them all out, he joins in with hilarious results.
Matthew inherits a large sum of money, but finds it impossible to hold on to. Matthew opens a bank account, but how long can he withstand the temptation of ATMs and credit cards?
Henry is stunned to find Matthew wearing makeup, and even more stunned when he finds out Matthew wants to become an actor. Matthew has joined the college drama group to play Othello, with a married woman as his Desdemona. Henry is horrified at the result.
Henry suffers every father's nightmare—teaching his son to drive. Inevitably, Henry's pristine new car begins to show signs of stress.
Prospective candidate Henry is opposed by an attractive woman in the election, creating a quandary for first-time voter Matthew.