Diana, a young, attractive teacher at a suburban Texas high school, is well-liked by her students and colleagues. Her life seems to be following the status quo, but in reality she’s having a secret affair with her student Eric…

While she would later shepherd its expansion into a 6-hour TV series, Hannah Fidell’s debut feature runs a mere 75-minutes. Such brevity speaks to the film’s lazer-pointed focus, its unnerving formal effects and fine lead performance evincing its protagonist’s mental unraveling with sleek economy.