As everyone prepares for Big Lou and Fat Bob's wedding, the peace and tranquility of 44 Scotland Street is disrupted by the arrival of domineering Irene, while Bruce, after being struck by lightning, prepares to leave his creature comforts for the monastic simplicity of Pluscarden Abbey, much to his house sitter's delight.

Grace Makutsi's husband, Phuti, is in a bind. An international firm is attempting to undercut his prices in the office furniture market. Phuti has always been concerned with quality and comfort, but this new firm seems interested only in profits. To make matters worse, they have a slick new advertising campaign that seems hard to beat. Nonetheless with Mma Ramotswe's help, Phtui comes up with a campaign that may just do the trick. Meanwhile, Mma Makutsi...