Christmas is a time for festive cheer, but for Mummy, it's a desperate attempt to maintain sanity amidst family chaos. Mummy dreams of a perfect Christmas with rosy-cheeked children and a crackling fire, but her chaotic family threatens to derail her vision. With the kids uncooperative and any chance of festive romance unlikely, Mummy must decide whether to rally her family for a moment of harmony or succumb to the allure of festive spirits. The narrative follows Mummy's struggle to orchestrate a harmonious holiday against the backdrop of familial disarray.

The book is positioned as a humorous and relatable take on the stresses of Christmas, particularly for mothers. Jilly Cooper's endorsement suggests a lighthearted and engaging read, likely appealing to those who enjoy contemporary fiction with a strong comedic element. The premise sets up a narrative that prioritizes comedic situations arising from family dynamics and the protagonist's attempts to manage them. The focus on 'festive spirits' indicates a theme of escapism and coping mechanisms, likely handled with a humorous rather than a heavy tone.