After an unplanned pregnancy following a party, Cass must navigate the social and personal consequences of her situation while forming an unlikely bond with a local outcast. Cass faces the pressure of deciding the future of her pregnancy while dealing with the isolation that often accompanies such life-altering news. Her path crosses with James Derwent, a boy known for his aggressive behavior, who serves as a catalyst for her changing perspective. The narrative follows their developing connection as they both confront the realities of their respective home lives and the expectations placed upon them by their peers. When James disappears, the story shifts into a search narrative, forcing Cass to take initiative to locate him.

Readers frequently highlight the book's grounded approach to difficult social topics, noting that it avoids overly dramatic tropes in favor of realistic character interactions. Discussion often centers on the dynamic between Cass and James, specifically how the author peels back the layers of James's abrasive exterior to reveal his vulnerability. Critics often point to the pacing as steady, allowing the reader to fully engage with the protagonist's internal decision-making process. The narrative is often praised for its ability to address complex themes without resorting to moralizing, making it a common recommendation for those seeking realistic portrayals of youth challenges.