In a society strictly polarized by class, girls at the Medio School for Girls are trained for only one of two roles--running her future husband's household or raising his children. Daniela Vargas is the school's top student, but she lives in fear that her secret will be revealed before graduation--her parents are from the poor fringe, and bought forged papers to get Dani into the school. Furthermore, on graduation night, Dani must make a choice when a rebel group asks her spy on the wealthy class in the pursuit of bringing equality to all of Medio.