One sunny morning in 1969, Frances Ellerby finds herself in a place called Stiltsville, a community of houses built on pilings in the middle of Biscayne Bay. It's the first time the Atlanta native has been out on the open water, and she's captivated. On the dock of a stilt house, with the dazzling Miami skyline in the distance, she meets the house's owner, Dennis DuVal—and a new future reveals itself.