The ultimate locked-room murder has been committed. Someone's been killed aboard the international space-station two hundred and twenty miles above the Earth. All six astronauts suspect one another, and paranoia runs high as more victims fall while trying to expose the killer. If he's not brought to justice - he can bring about the end of the world! A thriller in the vein of Whiteout, from the writer of the Eureka episodes 'Right as Raynes' and 'Purple Haze'!