This film contained a scene that was one of the most tense movie moments I had ever experienced (and I've seen some film). It also significantly undermines the concept of parenthood towards the end. Other than that, anything else I say would spoil the impact of its first viewing. Go in cold - don't read anything about it, and thank me later. Also, bet at least on Brie Larson's chances for an Oscar nomination, among the film's other awards (it already won Toronto's People's Choice Award). One of the greatest movies of 2015.