Sam and Janet prepare to set off for a wine-and-cheese party, though discover after setting off that they have lost the host's invitation that they do not know the address of the party.

Sam wishes for nothing more than an uncomplicated Sunday, but he wakes up with a hangover for a start, and then is blackmailed by Janet into making the tea. He is then questioned by Janet about his attractive secretary, gets interested in a woman's magazine love story, only to find the vital page missing, decides to do some gardening but realises it is lunchtime, thinks he will go for a walk and it begins to rain. "All I need now," he says, "is for her brother to come round on a surprise visit with his stupid wife." Guess who pays a surprise visit?

Pandemonium is let loose when Sam and Janet's 18 year old daughter Patsy comes home for the weekend. Sam seeks refuge at the local where he gets chatting to a young man called Andy who claims he is building up dutch courage to meet the parents of his girlfriend - "a right little raver" - who has a flat in town.

Janet's amateur dramatic company plan to stage a burlesque. Sam, after commenting that the women in the company were "mutton dressed as lamb", followed up by telling Janet "at least you act your age - you don't try to be young and beautiful."

Sam is having problems at work finding replacements for the staff that are away as holiday season is at its peak. In a moment of weakness he agrees that Janet can act as his relief secretary for a couple of weeks - and he ends up regretting the decision.

Janet arrives home from the amateur dramatic society in a a state of distress. After a disastrous final rehearsal, one of the leading men has hurt is back and Janet is threatening to back out. Sam comforts her and tries to coax her through learning her lines with the help of an alcoholic beverage or two.

Sam and Janet get caught in the crossfire for once as their son Peter drops out of college to travel the world with his new acquaintance Ron, a fully paid-up member of the alternative society. Janet and her daughter Patsy, however, concoct a plan to sabotage Peter's plans. Sam, too, is almost persuaded by Ron's idealism until he is brought back to earth with a bump.