Sarah is an applied and studious girl who has got a scholarship to study at O'heary. She is the pride of her family, whom she is obsessed with not letting down. With her good behavior, she hopes to achieve a better future for all of them. Although Sarah hates poshness and classism. And Isa, her friend and her roommate, have found many virtues that have made them intimate. However, Sarah will often feel like the poor girl in a world of the rich. Accustomed to being cautious and obedient, the mystery that the boarding school hides will completely absorb Sarah, making her even falter in her studies.