Would you risk yourself to prevent a series of murders? What if the victims embodied everything you hated? After the Bulgarian killer-for-hire, The Bumper, dispatched his April victim, Robert Hannah, a brilliant, but aimless poker-playing numerologist, is reluctantly drawn into the hunt for the puzzling killer intent on committing twelve perfect murders of wealthy, entitled young men in twelve cities over twelve months. Working alongside his old Harvard roommate, FBI Agent Curt Downey, and his team, Robert discovers the sinister pattern, threatening to thwart the murderous scheme. But when he puts himself in the crosshairs, the hunter becomes the prey; the puzzles become more sinister, and the stakes skyrocket as Robert Hannah must choose whether to pull back and save himself, or push forward and risk joining the list. Puzzles, patterns, riddles, and rhymes. Kill Them All will keep you guessing to the end.