When Grace arrives in Roone Bay, the village where her grandmother Caitlin grew up, the wreck of Caitlin’s cottage whose key Grace was given on her wedding day as a secret refuge if she ever needed it, is not the fresh start she’d hoped for. But hiding from a painful past and with her daughter, Olivia, to look after, Grace must stay strong. Plucking up the courage to ask for help from rugged carpenter Sean Murphy, Grace gets to work making the house habitable. Soon the view of the deep emerald sea has her captivated and Sean makes her laugh in a way she’d forgotten she could. But when Grace uncovers a long-lost letter to Caitlin that reveals a heartbreaking truth, her new life is suddenly threatened by her own devastating secrets.