When her grandmother goes missing from the family beach house, Maddy and her estranged sisters converge in Sea Haven, North Carolina. Being with uptight Nora and free-spirited Emma in the home where their family broke apart is a struggle Maddy is not in the mood to face, especially since she’s recovering from her ex-boyfriend’s betrayal.

As the sisters wait for word of their grandmother, they begin to pack up the family belongings—and unpack memories of the idyllic summers of their childhood. But with those memories come long-buried secrets, and Maddy discovers that all was not as it appeared that last summer in Sea Haven. Meanwhile, Gram’s neighbor, Connor Sullivan, seems overly interested in Gram’s whereabouts. Maddy is drawn in by his quick smile and steady gaze in spite of herself.

Undercurrents of jealousy and resentment threaten to pull the family under again, maybe for good this time. As tensions rise, the sisters must find a way to accept each other for the women they’ve become—and Maddy must decide if falling in love again is worth the potential heartbreak.