At an international boarding school, an unassuming, yet rigorous, Miss Novak joins the teaching staff to instruct a new class on "conscious eating." Her impressionable teenage students each have their own reasons for joining the class, to improve fitness, reduce their carbon footprint, or get extra credit. Although early lectures focus on mindful consumption, Miss Novak's discussions soon become increasingly disordered and extreme. A suspicious headmistress concerned parents and the failing health of her students lead everyone to question the inscrutable Miss Novak's motivations for teaching the class. As a sinister goal to aspire to joining the ominous "Club Zero."