Seventeen-year-old Lucas Rowland doesn’t belong at Lake Avalon, the exclusive summer enclave for old-money families and their carefully groomed heirs. But when his parents rent a house for the season, he and his younger sister Fay are pulled into a world of quiet opulence, cryptic traditions, and beautiful strangers who seem to be playing by rules no one will explain.

Fay is quick to adapt, and Lucas finds himself drawn into the orbit of Emory Avalon, the enigmatic heir to the estate that bears his name. As the days grow stranger, Lucas must decide whether to protect his sister, play along, or walk away from a game he never agreed to join.