James M. Cain was an American author known for his hard-boiled crime fiction. Born on July 1, 1892, in Annapolis, Maryland, he gained fame in the 1930s with novels like The Postman Always Rings Twice and Double Indemnity. His writing style is characterized by its sharp dialogue and focus on the darker aspects of human nature. Cain's works often explore themes of greed, betrayal, and desire, making him a significant figure in the genre of noir literature. His influence extended beyond literature, as several of his novels were adapted into successful films, further cementing his legacy in American culture.