Coolly sophisticated and steadfastly single, Caroline Renwick has always been the sister everyone could count on. As she and Clea and Skye gathered at Firefly Hill, their childhood home, Caroline thought that they had all put the past behind them. But as summer gets under way, a mysterious man arrives—a man who has the power to bring it all back....

Artist Dana Underhill has always been a free spirit, traveling the world, filling her canvases with the mysterious colors of the seas she and her sister have sailed since childhood. Then on a calm, moonlit night an inexplicable “accident” occurs and Dana is called home to Hubbard’s Point to become a mother to her two young nieces, a challenge unlike any she’s ever known. As Dana and the girls struggle to begin a new life - and to find the truth about what happened to Dana’s sister and brother-in-law - help comes in the person of an old childhood friend.

Beneath his controlled demeanor, attorney John O’Rourke is a man in turmoil. Since the death of his wife, he has been juggling the rigors of a controversial capital murder case and the demands of raising two children. As 11-year-old Maggie and 14-year-old Teddy long for the past, they must also contend with the hostility that swirls around them since their father took on the defense of a despised killer - including a brick through their window one autumn morning.

Painter Honor Sullivan has made a life for herself and her three daughters, Regis, Agnes, and Cecilia, at Star of the Sea Academy on the magical Connecticut shore. Here she teaches art at the convent school's beautiful seaside campus, over which Honor's sister-in-law, mother superior Bernadette Ignatius, keeps a benevolent and watchful eye. No one could have foreseen the day rebellious Regis would come home with the stunning news that she was getting married.

Lydie McBride has always embraced life to the fullest. But when an unthinkable tragedy strikes her family, everything she believes in is shattered. Her architect husband, Michael, watches the passion disappear from Lydie’s eyes and from their marriage, and hopes that an assignment to Paris will help them reclaim a love that once seemed unassailable. But the City of Lights holds secrets and seductions for them both.