Huppert owns a coffee plantation in an unknown African country torn by civil war, and ignores every warning to leave the country before she and her family end up dead. Critical problem: not sure why she ignores the warnings and stays. And the screenplay makes no effort to give us the slightest inkling regarding this fuzzy aspect - which leads us to only one explanation: the lady is insane. Was that the purpose? To portray an insanely stubborn person, and the consequences of her decision? Tell me if you see any other logic in this award-winner.
PS: Read above, about another movie I coincidentally saw back-to-back with this one; different setting but exact same subject.