25 years ago, a 16-year-old schoolgirl and her charismatic teacher disappeared without trace. In an elite Catholic girls’ boarding-school, the pupils live under the repressive, watchful gaze of the nuns. Seeking to break from the cloistered atmosphere, two of the students – Louisa and Victoria – quickly become infatuated with their young, bohemian art teacher, who encourages their flirtation. Then, he and Louisa vanish. Years later, a journalist uncovers the troubled past of the school and determines to resolve the mystery of the missing pair.