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Has Jefferson Winter finally met his match? Six years ago a young married couple were found brutally stabbed to death in their home in Upstate New York. Local police arrested a suspect who later committed suicide. But what if the police got it wrong?Ex-FBI profiler Jefferson Winter is drawn into a deadly cat-and-mouse game with a mysterious female psychopath as she sets him a challenge: find out what really happened six years ago.The clock is ticking and, as Winter is about to find out, the endgame is everything .