After the apparent suicide of her colleague and friend, Julie Taylor steps in to teach the senior math class for the remaining weeks of the school year. This opportunity offers a new beginning for both Julie and her teenage daughter, Miya, after a challenging year. Julie is hopeful that Miya won’t struggle too much with being the new student and the teacher’s daughter. However, her concerns grow when Miya quickly befriends Amy Turner, the school’s notorious mean girl. Amy’s dangerously manipulative behavior and intense desire to be crowned prom queen make Julie anxious about her daughter’s well-being and lead her to question the lengths Amy might go to secure the title.