The Postman Always Rings Twice by James M. Cain
An amoral young tramp. A beautiful, sullen woman with an inconvenient husband. A problem that has only one grisly solution — a solution that only creates other problems that no one can ever solve. First published in 1934 and banned in Boston for its explosive mixture of violence and eroticism, The Postman Always Rings Twice is a classic of the roman noir. It established James M. Cain as a major novelist with an unsparing vision of America's bleak underside, and was acknowledged by Albert Camus as the model for The Stranger.