Head Librarian Frances O'Brien (Robyn Butler) is back and library life has never been more laughable. While her relationship with husband Terry (Wayne Hope) has improved, Frances is still having a hellish time, and for once its not all of her making. Frances's mother Pearl (Victoria Eagger), suffering from both dementia and a really horrible personality, lands on the O'Brien doorstep. Adding to her woes, she has to keep the Middleton Interactive Learning Centre running as a profitable business. For the staff, who have a hard enough time enforcing the return of a book, this latest initiative could spell the end for the library.