Signet/New American Library, second printing thus, 1957.Vg mass-market paperback, 125 pages with fine cover art, artist unknown, binding is sound, covers have corner creases, red covers with publishers red tint to text edges, no names or marks. Walter Huff, a bachelor insurance agent, falls for the married Phyllis Nirdlinger, who consults him about accident insurance for her unsuspecting husband. In spite of his instinctual decency, and intrigued by the challenge of committing the perfect murder, Walter is seduced into helping the her do away with her husband for the insurance money. Killing him at night, they place the body on railroad tracks to look as if he had fallen from the observation platform of a train. Huff's company are suspicious and delay payment, keeping Phyllis and Walter under surveillance so that they dare not meet. Without the money he had killed for and without the woman he wanted, Walter decides to keep her quiet by murdering her as well, but she forestalls him and shoots him in the chest. Hospitalized, he confesses the plot to Barton Keyes, the company's claims manager, who arranges for him to escape justice by taking a steamship for Mexico. Also on the ship is Phyllis and, when the two meet, they decide to end it all by jumping off the stern into shark infested waters. First published as a serial in Liberty Magazine, it was made into a highly regarded movie starring Barbara Stanwyck, Fred Macmurray, and Edward G. Robinson in 1944. The author based the story in part on an actual murder he had covered as a journalist.