Cheri is an innocent fourteen-year-old raised in a small town in Nebraska . Her father lands a promotion, demoting her to a status of ‘nobody’ in a much larger and inhospitable city. One of the few people she connects with in her new school spills the beans that Cheri is still a virgin. Some of her cool schoolmates frown on that condition and exert pressure on her to unbuckle the chastity belt. Faced with the loneliness of the new environment and coupled with relationship problems with her father, Cheri finds the temptation growing strong. When her father recruits a sixty-something babysitter, she is ready to rebel. However, she finds that Jean Macalester is no ordinary woman, especially to a girl with aspirations of resuming a love affair with music. Jean's womanly wisdom, background as a flute teacher, and love of God provide a counterweight to the peer pressure of Judy Green, the girl who goes on a personal crusade to convert Cheri to modern morality. When Cheri and Duke Williams, Cheri's new crush, discover the church youth group plans a chastity pledge, they have to decide whether to join or fly solo. While guarding her own purity, Cheri tries to help friends in distress, win top chair in the band, and set her dad up with the teacher from the chastity class. When two of her friends are brutally assaulted, the members of the youth group have to work through the pain together as they discover that chastity is not the only Christian virtue they need to embrace.