For the first time in four years, physician Bess Codman visits the compound her great-grandparents built almost a century before, but due to erosion, the once-grand home will soon fall into the sea. Bess must now put aside her complicated memories in order to pack up the house and deal with her mother, a notorious town rabble-rouser, who refuses to leave. It's not just memories of her family home Bess must face though, but also an old love that might hold new possibilities. In the midst of packing Bess rediscovers the forgotten family guest book. Bess's grandmother and primary keeper of the book, Ruby, always said Cliff House was a house of women, and by the very last day of the very last summer at Cliff House, Bess will understand the truth of her grandmother's words in ways she never imagined.