[7] Judi Dench plays a cranky old teacher who befriends a new, younger teacher played by Cate Blanchett. Blanchett quickly confides in the older woman and thinks she’s made a new friend. But Dench’s aims are more sinister than that. After Dench catches Blanchett in an extra-marital affair with an underaged student, she uses the knowledge to emotionally manipulate Blanchett. As Blanchett enters crisis mode, …