Hester looks forward to babysitting Guy while Emma and Peter attend a function in London; meanwhile she delivers Meals on Wheels to one of Sonia's old ladies. She gets lost and causes a traffic jam, and policeman she collides with escorts her home, mistakenly believing that she's the expectant one. The next day when Guy is there, the policeman stops by to check on Hester and is amazed to see her holding such a large baby - for her supposed newborn. 

Hester is standing for chairperson of the residents' association and is not pleased to learn that the other candidate, Miss Henshaw, is a glamorous young woman whom William hopes to attract as a client. At Sonia's cheese and wine party Hester meets her rival, who may be younger and prettier but has a truly irritating laugh. Fortunately Hester has the last laugh when she wins the election.