Mary Lavelle, a beautiful young Irish woman, travels to Spain to see some of the world before marrying her steadfast fiance John. But despite the enchanting surroundings and her three charming charges, life as governess to the wealthy Areavaga family is lonely and she is homesick.

Then comes the arrival of the family's handsome, passionate - and married - son Juanito and Mary's loyalties and beliefs are challenged. Falling in love with Juanito and with Spain, Mary finds herself at the heart of a family and a nation divided.

Behind the high, closed walls of a convent in the Irish countryside, the lives of its inhabitants are gently marked by the daily rituals of spiritual life. Watching over Anna, her sensitive and poetic young charge, the Mother Superior revisits her childhood relationship with her father. As Anna develops from a six-year-old to a scholarship candidate, Helen comes to understand her own heart and makes peace with her past.