I think there's no better actress out there than Mare Winningham. It seems that almost always she plays a victim, maybe because she's not jaw-dropping beautiful. But she's believable in every role, and in this one she takes you with her on a downward spiral where the only consolation is her own dogged innocence. Helps you realize, once more, that the people you don't stop to look at twice are each, no less than the striking ones, a complete human world.