To protect her ill sister Aurora and secure her mother's inheritance, Isidora has disguised as an ugly girl for years. The day before her engagement banquet with Kevin, she finds him in bed with Stella, his step-sister. She drinks to forget, but ends up in the wrong room and shares a passionate night with a stranger. The next day, she learns that the stranger is Cedric, Kevin's uncle and their family's heir. Isidora reveals Kevin's affair and wants to break the engagement, but her father Alaric forces her to keep it. Stella keeps trying to frame her, and she strikes back with the help of Cedric and her late mother's friend Eleanor. She exposes Alaric's crimes, sends him to jail, and marries Cedric.
