Her heart is thumping now, only just distinguishable from the roar of the water and the wind. This is not safe. She is not safe... She realises then, only one of them is coming back out alive. Sorcha thought her life was over when she discovered her husband's affair. But somehow, she's risen from the ashes of their divorce, and now she's determined to give something back and help other women who need support. Women like shy and isolated Tina, who has barely left her flat in the past year. Like Sorcha, Tina knows what it feels like to be betrayed by the man you love.But when Sorcha invites Tina into her life, and her home, she opens the door to much more than just friendship - and for these two women, nothing will be the same again. Because one of them is hiding a dark secret - a secret they'll do absolutely anything to keep....