If you enjoy gritty and dark, violent futuristic sci-fi mystery thrillers, then The Dark Side by Anthony O’Neill will be just the book for you. O’Neill works crime, sex, drugs, and a psychotic murdering android into a full-on non-stop plot, and that’s just to name a handful of the topics covered in this book. In The Dark Side, two key narrative threads can be discerned, but even though they are fundamentally related to each other, the connections won’t become clear until later on. In one storyline, Lieutenant Damien Justus has come to Purgatory, a lunar territory founded by megalomaniac billionaire-in-exile Fletcher Brass. Its capital, appropriately called Sin, has been turned into a haven for fugitives and other undesirables from Earth who have come to the moon to escape their old lives. It is the only place where the shadier your record is, the better the chance you’ll be let in. Even the police here have dodgy backgrounds. Justus, however, is the patently incorruptible good cop who has just arrived from Earth, and he’s just the kind of guy Purgatory needs to clean things up. To him, no one is above the law—and no exceptions. He is immediately given the lead…