As a young child, Lydia and her sister were sent to live with grandparents they'd never even met. It's a cruel and loveless new world for them and it teaches Lydia to grow up fast. She learns to keep secrets and to trust sparingly. And through it all she suppresses her grief and guilt, believing she is to blame for her mother's death.

A fateful car crash sets in motions a series of events for Floriana, Esme. Floriana gathers the courage to attend the wedding of her one true love, and Esme journeys with her to Lake Como to find the man who stole her heart many years ago. It’s time for Esme and Floriana to face the past - and the future - on the shore of the most romantic and enchanting of lakes.

Summer 1939: After touring an unsettled Europe to promote her latest book, Romily Temple returns home to Island House and the love of her life, Jack Devereux. But when Jack falls ill, his estranged family are called to his bedside. With war now declared, each member of the family is reluctantly forced to accept their new stepmother and confront their own shortcomings. But can Romily cope with the life that has been so unexpectedly thrust upon her?

Esme has run the guest house for as long as anyone in Ballycove can remember. But in her declining years, her sight is failing, and when she has a fall on the eve of the summer season, she is forced to take a back seat for the first time in her life. From her chair in the entry hall, not much passes Esme by. There's Cora, the wife visiting indefinitely... without her husband; Niamh, the city professional with a life-changing decision to make; and Phyllie, the grandmother whose family is slipping away from her.

When Elizabeth's husband dies, leaving her with crippling debt, the only person she can turn to is her friend, Jo. Soon Jo has called in her daughter, Lucy, to help save Elizabeth from bankruptcy. Leaving her old life behind, Lucy is determined to make the most of her fresh start. As life slowly begins to return to normal, these three women, thrown together by circumstance, become fast friends. But then Jo's world is turned upside down when she receives some shocking news. In search of solace, Jo and Elizabeth find themselves enjoying midnight dips in the freezing Irish Sea.