The Postman Always Rings Twice

Frank Chambers, a drifter, is dropped from the back of a truck at a rundown rural diner. When he spots Cora, the owner's wife, he instantly decides to stay. The sexy young woman, married to Nick, a violent and thuggish boor, is equally attracted to the younger man and sees him as her way out of her hopeless, boring life. They begin a clandestine affair and plot to kill Nick, beginning their own journey toward destruction.
Horace McCoy, David Goodis, Jim Thompson, and the other notable noir writers never achieved Cain's spare brilliance. Virtually all of his major works have been filmed, though several Hollywood studios refused to make the films, directors refused to be involved, and actors turned down roles because of their repugnance at the lack of morality inherent in all Cain's characters. Reading him may not be fit for a Sunday school class, but once you begin you will be unable to resist continuing, like picking at a painful scab or watching a tarantula inside a glass dome.