Another in the 'marriage thriller' genre, I guess, and another very good one. George Foss's college sweetheart had gone home to Florida for the holidays twenty years ago, and never returned. George learns that she has committed suicide. Devastated, his life drifts meaninglessly for the next twenty years, until he meets a woman in a local bar claiming to be her. She asks for a favour, which leads to a twisting and thrilling series of events which leaves the reader riveted. Evoking the spirit of Body Heat and Double Indemnity this is a hard book to put down, and confronts the reader with questions about who you can really trust, and what you can safely believe from your own past. And it's better than Gone Girl..