In this dark and gripping sci-fi noir, an exiled police detective arrives at a lunar penal colony just as a psychotic android begins a murderous odyssey across the far side of the moon. Purgatory is the lawless moon colony of eccentric billionaire, Fletcher Brass: a mecca for war criminals, murderers, sex fiends, and adventurous tourists. You can't find better drugs, cheaper plastic surgery, or a more ominous travel advisory anywhere in the universe...