It is the start of 1919 and Miss Rina Capel, granddaughter of the Laird of Stavondale has one ambition - to set aside her life of privilege and become a nurse. But when she is summoned back to the Bonnybrae to see her dying grandfather just before her eighteenth birthday, he reveals to her family secrets which turn her world upside down. In love with a man she can't have, and facing marriage to a man she has never met, Rina must draw on all her reserves...