The Fourmiles host a Christmas pantomime but are short an 'ugly sister', so Mildred is asked to stand in.

Mildred inadvertently contributes George's stash of gardening books to a church, but learns that they were actually old pornographic magazines, and must retrieve them before the vicar finds out!

When Mildred rents out the backroom to a travelling salesman, George begins to believe the two are having an affair!

George buys Mildred a carriage clock for her birthday, but later learns the Fourmiles had been robbed and the clock might have once belonged to them.

Mildred wants socialist George to join the local Tory party so they can qualify for a cheap holiday, courtesy of the Conservative Association.

Mildred's sister Ethel and her husband Humphrey are coming round for a meal but George has forgotten to pay the electricity bill.

While cleaning, Mildred finds an old case containing George's old love letters written to someone named 'Dorothy'...