"Laugh a Little Louder Please" is the third episode of the fifth and final series of the period drama Upstairs, Downstairs.
Sisson also brought some of her own experiences and feelings, as a child in the Second World War, into this episode.
[1] It is the summer of 1921, and Georgina, James, Diana Newbury and Captain Robin Eliott decide to hold a fancy dress "Freedom Party" while Richard and Virginia are away in Geneva on League of Nations business.
Shortly after the party has started, Miss Treadwell, Alice and William's new governess, arrives at Eaton Place.
Hudson, who arrived seconds after Miss Treadwell found the body, reads a letter Captain Eliott wrote on the back of a drawing from the nursery: "My dearest Georgina.