Maggie O'Hara knows better than most that life can change in a heartbeat. Eighteen years ago she was given the most precious gift- a second-hand heart, and a second chance at life. Always thankful, Maggie has never forgotten Lucy Harte - the little girl who saved her life. But as Maggie's own life begins to fall apart, and her heart is broken in love, she loses sight of everything she has to live for.