The film probably had a really strong high concept logline, but the execution and script are poor. It flatters to deceive. The production values are good, so is the acting. But there's no reason or explanation or context, which would be fine if the action or tension were sky high, but they're not. It's simply a film about a journey, that's not scary enough to be a horror, not action packed enough for an action movie, and not thought through enough for a sci-fi.