Fourteen-year-old Cresta finds her academic focus and personal peace disrupted by her mother's adolescent-like behavior and a sudden, unexpected interest in boys. Cresta and her friend Charlie attempt to navigate the pressures of schoolwork and the looming A-levels while dealing with parents who refuse to act their age. The narrative unfolds through a diary format, capturing the daily frustrations and social observations of a teenager living in a chaotic, high-energy household. As they strive to maintain their academic goals, the arrival of new, intriguing peers forces them to confront their own burgeoning romantic interests and the reality of growing up.

This work is characterized by its lighthearted, observational approach to the common trials of adolescence. The diary format allows for an intimate look at the protagonist's internal monologue as she balances the demands of her education with the unpredictability of her home life. The narrative suggests a focus on the relatable friction between teenagers who desire maturity and parents who seem to be regressing. Readers likely find the humor in the reversal of traditional parent-child roles to be the primary driver of the story's appeal.