Now here is Charles Williams' River Girl, in every way a giant of a book--the story of a man and a woman who met and knew instantly that not all the world would tear them apart.
River Girl, first published in 1951 as "The Catfish Triangle," is a book that shares some similarities with Cain's The Postman Always Rings Twice.
Down in swamp country a deputy sheriff meets and falls in love with a young lass, but her husband stands in the way... for a time.