Nantucket is only two and a half hours away from Martha's Vineyard by ferry. But the two islands might as well be worlds apart for a set of identical twin sisters who have been at odds for years. ust because twins look exactly the same doesn't mean they're anything alike - and Tabitha and Harper Frost have spent their whole lives trying to prove this point. When a family crisis forces them to band together - or at least appear to - the twins come...

A family drama of dark secrets and individual awakenings is set against the backdrop of the turbulent summer of 1968 in Martha's Vineyard, where twenty-two-year-old Whitney Dane begins questioning her goals and sense of independence at the side of a fiercely ambitious, underprivileged man.