Charlotte and Nicole were once the best of friends, spending summers together in Nicole's coastal island house off Maine. But many years, and many secrets, have kept the women apart. A successful travel writer, single Charlotte lives on the road. Nicole, a food blogger, keeps house in Philadelphia with her surgeon husband, Julian. When Nicole is commissioned to write a book about island food, she invites her old friend Charlotte back to Quinnipeague, for a final summer, to help. Missing a genuine connection, Charlotte agrees. But what both women don't know is that they are each holding something back that may change their lives forever.