It's more like an interactive computer game than a conventional sci-fi thriller, but it's good, grisly fun nonetheless. Six strangers awake to find themselves trapped inside a giant Rubik's Cube-like prison, a huge complex of some 17,000 interconnected,
perfectly square cells. There's a hatchway on each of the cells' six surfaces that leads to the adjoining cube and, hopefully, the outside world. But there's a nasty catch: Some of the cubes are safe to pass through, others are booby-trapped in devious, deadly ways, and there's no clear way to
tell them apart. The object: Increasingly paranoid prisoners must move from block to block in order to reach the surface wit...