I'm all for a low-concept horror film. Sure, a high concept horror film, one with a simple idea that is easy to market and produce, is more likely to be polished and clear in its purpose, but a nice broad-reaching, low-concept, throw everything out there and see what sticks horror film can be an experience. I applaud the ambition even if the execution winds up being far more than, say, a first time writer/director could really handle.
Writer/director Jeremy Saulnier is now best known for Green Room, his masterful horror film about a punk band fighting for their lives after witnessing a brutal crime at a night club filled with neo-Nazis. The film is full of fascinating themes and diversions into discussions of passing privilege, justice, and family. It's also absurdly violent and filled with action set pieces that are only as believable as they are because of the perfect pairing of casting and concept.