The Sudoku Experiment (English Edition)

Helen, his dimwit of a wife, has just beaten him yet again in a Sudoku contest; her smug smile as infuriating as her inexplicable wins. Truth be told, Harvey is sick to death of his spouse in every way — her inane nonstop prattle, her mundane interests and now, the final insult — she has ruined for him the game he so loves. But it's not until the luscious and sensual Aubrey is hired to work beside him at the bank, that the middle-aged Harvey begins to dream of a new life without his wife and his thoughts turn toward the perfect murder...