The Narrows, Ann Petry. Set in the 1950s, this unforgettable classic deftly evokes a tragic love affair and offers a window onto the powerful ways in which class, race, and love intersected in midcentury America.
Villa America was in fact a real house on the French Riviera that Sara and Gerald Murphy built to escape to in the 1920's. Members of a group of expat Americans, they were known for their fabulous parties, but these were people who kept secrets and who were, of course, heartbreakingly human.
The story of three women living very different lives in Australia, but when one of them finds an old tattered letter in the attic that's addressed to her, to be opened only in the event of her husband's death (and he is still very much alive), it opens up a Pandora's box. Their lives will intersect in ways none of them could foresee.