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From Atlanta's wealthiest suburbs to its stark inner-city housing projects, a killer has crossed the boundaries of wealth and race. And the people who are chasing him must cross those boundaries, too. Among them is Michael Ormewood, a veteran detective whose marriage is hanging by a thread--and whose arrogance and explosive temper are threatening his career. And Angie Polaski, a beautiful vice cop who was once Michael's lover before she became his enemy. But unbeknownst to both of them, another player has entered the game: a loser ex-con who has stumbled upon the killer's trail in the most coincidental of ways--and who may be the key to breaking the case wide open.

In this gritty, gripping firecracker of a novel, the author of the bestselling Grant County, Georgia, series breaks thrilling new ground, weaving together the threads of a complex, multilayered story with the skill of a master craftsman. Packed with body-bending switchbacks, searing psychological suspense and human emotions, Triptych ratchets up the tension one revelation at a time as it races to a shattering and unforgettable climax.