It is a scene all too familiar in Mosul. Three gay men are forced to the edge of a rooftop and thrown onto the stone street below. But this isn't Mosul or Damascus. This is London.Tony Assad works for MI5. He's a tall, good-looking man of mixed race who speaks perfect Arabic. He lives happily with his boyfriend of five years until the day he's put in charge of a case that will mix his personal life with political life as it all threatens to tear his world apart.