Plot: The North Hampstead Operatic Society are putting on a production of Gilbert and Sullivan's The Mikado, with Hugo acting as director and Jacqui and Susan lined up for the roles of Yum-Yum and Pitti-Sing. Dudley attends the auditions at Stanley Barlow's bookshop in the hope of securing the lead, but has to make do with painting the scenery and playing the part of the third coolie in the chorus