When Pat accepts her ex-boyfriend Bruce's invitation for coffee, she has no idea of the complications that will follow. Meanwhile, Matthew, her boss, attracts the attention of the police after a misunderstanding at a bookstore. Change is coming to Scotland Street in this 12th comedy in the series, and for three seven-year-old boys—Bertie, Ranald, and Big Lou's foster son, Finlay—it also means getting a glimpse of perfect happiness.