After securing a teaching job at a dysfunctional high school, loner Robin moves to South Bend, Indiana, where she’s paired with an eerily perfect roommate, Naomi. Freshly estranged from her abusive parents, Robin obsesses over two goals: to be the best teacher at the school, despite never having taught, and to become best friends with Naomi. Meanwhile back home, Robin’s brother must decide between being loyal to his sister or their parents. Just as Robin grows closer to her students and Naomi, she receives earth-shattering news from her brother. Desperate to cope, Robin redoubles her efforts to befriend Naomi, spiraling even deeper into obsession and self-sabotage. Everything comes to a head when one of Robin’s many bad choices comes back to bite her.