A wild teenage girl orchestrates a romance between her nanny and her father, who is a recovering addict.

Johanna Parry moves to a new town to work for Mr. McCauley and his granddaughter, Sabitha. Sabitha and her friend trick Johanna into a one-way epistolary romance with Sabitha’s father Ken. Johanna lights on fire, and commits a criminal act to get to her lover, who barely knows she exists.