Gally is down at Blandings and writing his memoirs, to the horror of all who knew him in their wild youths, particularly Lord Emsworth's neighbour and pig-fancying rival Sir Gregory Parsloe-Parsloe.

While sinister forces, including the efficient Baxter and the unpleasant Percy Pilbeam, scheme to put a stop to the book, Ronnie Fish and his old pal Hugo Carmody are entangled in difficult relationships, which require much subterfuge, some pig-theft and a little imposter-ing to resolve.

Hoping to get money out of Lord Emsworth, his trustee, Ronnie claims to love pigs, but his uncle has seen him bouncing a tennis ball on the Empress' back, and is enraged.

Ronnie, inspired, steals the pig, planning to return it and earn his uncle's gratitude, roping in Beach to help; they hide her in a cottage in the woods.

Ronnie gets angry at Pilbeam, makes a scene, spends a night in jail, and in the morning snubs Sue, who he believes has betrayed him.

Meanwhile, Baxter intercepts a telegram meant for Lady Constance from Myra Schoonmaker in Paris, and goes to the imposter Sue's room to retrieve a note he sent her, criticising Lord Emsworth.

He tells Lady Constance that he will suppress his book if she agrees to sanction Sue and Ronnie's marriage, and to persuade her sister Julia to do likewise.

Pilbeam, hearing this as he once again climbs the drainpipe, gives up his mission, leaving Galahad to tell Sue the old story of Sir Gregory Parsloe-Parsloe and the prawns.

[9] A stage play, adapted by Giles Havergal, was first performed at Glasgow's Citizens Theatre in 1992;[10] a 1998 revival starred Helen Baxendale as Sue Brown.

[12] The novel was dramatised by Archie Scottney for BBC Radio 4 in 2010, with Charles Dance as Galahad Threepwood, Patricia Hodge as Lady Constance, Martin Jarvis as Lord Emsworth, and Ian Ogilvy as the narrator.

Hugo Carmody and Ronnie Fish had previously been introduced to readers in Money for Nothing (1928), while the Empress appeared in the shorts "Pig-hoo-o-o-o-ey" and "Company for Gertrude", the latter also featuring the devious Sir Gregory Parsloe-Parsloe.