Faith Tiknor, her younger sister Erin, and their father Joe move from the small town of Brownsville to the larger and more affluent town of Delwick during Faith's sophomore year. Faith has to not only start over, friendless, in a new town but also at a new school. Faith puts her best foot forward, and she is optimistic about her prospects. Unfortunately, though, some bigoted, hateful, and entitled people in her new neighborhood, exhibit actions and motives that are beyond reproach. The Ugly Girl Party follows Faith's ups and downs as she attempts to make friends, confront her tormentors, shield her younger sister, and survive her father's new romance.