Despite the fact that Richard is now retired, Hyacinth is determined to be invited once again to the Mayor's Fancy Dress Ball. Then she must decide what to go as, keeping in mind that Richard will have to chose a costume that goes with hers.

Cast: Patricia Routledge, Judy Cornwell, Josephine Tewson, Geoffrey Hughes, Mary Millar, David Griffin, Clive Swift, David Janson, Ivor Danvers, Jean Harvey, Kyle Wicks