To help explore “What Keeps You Alive,” I have to expose a bit of its plot, which, for some, is situated in spoiler territory. I have no interest in ruining the picture for others, so here’s a mini-review: it’s terrific. It’s a wicked, somewhat surprising chiller from writer/director Colin Minihan, who impressed mightily with “It Stains the Sands Red” a few years back, now newly energized to offer another slice of horror cinema that’s genuinely frightening at times, also doing much with very little money. Minihan’s got a special vision for “What Keep You Alive,” and his execution is confident, perhaps too much so at times. In short, it’s an impressive feature, and one that will likely delight those in the mood for something merciless and feral. If you’re sensitive to story information, this is a good place to stop reading.  Read the rest at Blu-ray.com