A tragic accident leaves the tight-knit book club in the small seaside town of Fairweather reeling. Then stranger Tom McLysaght arrives in the community, and the members of the club find their lives changing in ways they never could have imagined. None of them realise that Tom is hiding a secret. On the surface, his move to Fairweather was to escape his highflying life in London and to put some much-needed distance between him and his ex-fiancée - but deep down Tom knows that there are some things he cannot run from.

Nell Mulcahy grew up on the island, so when the old stone cottage by the edge of the sea went up for sale, the decision to move back from Dublin was easy. But when Nell decides to rent out her cottage for the summer to help raise money her forthcoming wedding to Tim, she's unprepared for what's about to happen. As she welcomes holiday-makers to her cottage, Nell must face some truths: about her upcoming wedding to Tim and her friendship with his brother, James. And, meanwhile, her father delivers some astounding news which leaves Nell, her mother and the island reeling.

May O'Callaghan has decided that life's too short and she's decided to throw in the towel in her predictable nine-to-five job. Now what? As May fits into her new life we meet her friend Pam and her husband Jack - but why is Pam terrified to tell Jack that she's pregnant? And then there's Denis and Bernard, May's next-door neighbours, going about their business oblivious to the deadly threat that lurks close by. There's Paddy, who lives on his own yet never seems to be at home.

Emily Feeney has always loved the festive season, so when she invites some of her favourite people to Christmas dinner at her restaurant, she has an afternoon of delicious fare and seasonal fun in mind. But as the big day draws near, her plans start to look a bit uncertain. Her partner Bill is preoccupied by family worries, and both he and Emily have been skirting around a big unanswered question. When events finally force Emily to issue an ultimatum, Bill must choose between the two women he loves.

Georgian mansion Wharton Park was a place of childhood solace for Julia Forrester, spending summers in the Norfolk countryside with her beloved grandfather. So after tragedy strikes, she finds herself seeking comfort at Wharton and the allure of its hothouse, once home to exotic flowers from all corners of the globe but now lying abandoned. There she meets the new owner, the charming and magnetic Kit Crawford, whose own past is shrouded in sadness and mystery.