Kelley Quinn is the owner of Nantucket's Winter Street Inn and the proud father of four, all of them grown and living in varying states of disarray. Patrick, the eldest, is a hedge fund manager with a guilty conscience. Kevin, a bartender, is secretly sleeping with a French housekeeper named Isabelle. Ava, a school teacher, is finally dating the perfect guy but can't get him to commit. And Bart, the youngest and only child of Kelley's second marriage...

A year ago, Irene Steele had the shock of her life: her loving husband, father to their grown sons and successful businessman, was killed in a plane crash. But that wasn't Irene's only shattering news. He'd also been leading a double life on the island of St. John, where another woman loved him, too. Now Irene and her sons are back on St. John, determined to learn the truth about the mysterious life -- and death -- of a man they thought they knew....

Madeline King and Grace Pancik are best friends and the envy of Nantucket for their perfect marriages, their beautiful kids, their Sunday night double dates with their devoted husbands. But this summer, something's changed, and if there's anything Nantucket likes better than cocktails on the beach at sunset, it's a good rumor. And rumor has it... that Madeline, a novelist, is battling writer's block, with a deadline looming, bills piling up, and blank...

Irene Steele's idyllic life-house, husband, family-is shattered when she is woken up by a late-night phone call. Her beloved husband has been found dead, but before Irene can process this tragic news, she must confront the perplexing details of her husband's death. He was found on St. John island, a tropical paradise far removed from their suburban life. Leaving the cold winter behind, Irene flies down to the beautiful Caribbean beaches of St. John...

Gathering on Nantucket for a wedding planned to the letter by the bride's late mother, the Carmichaels and the Grahams hide their scandal-ridden, crumbling lives from the blissfully unaware happy couple.

Vacationing together in accordance with their tight-knit friendships, four Nantucket couples are shattered by a boating accident that kills two of their number, an event that sends the island into mourning and reveals unexpected truths about their private lives.

Visiting Nantucket with their children during a summer vacation, three women befriend a local youth and share their struggles with such challenges as infidelity, the loss of a job under scandalous circumstances, and health problems.

While preparing for Christmas at the Winter Street Inn, Kelley Quinn and his family find the holiday season thrown into chaos when three of their exes show up.

Some of the stormy weather of the past few seasons seems to have finally lifted for the Quinns. After a year apart, Mitzi has returned to rule the roost; Patrick is about to be released from prison; Kevin has a successful new business and is finally ready to tie the knot with Isabelle; and best of all, there's hopeful news about Bart, who has been captured by enemy forces in Afghanistan. That doesn't mean there aren't a few dark clouds on the horizon....