Spanning the early 1950s through the mid-'60s, this coming-of-age story is about a young girl's first love. In this case, her first love is God. Raised by a deeply caring, non-religious mother, Cathleen is drawn to the heady mysticism of the lives of Catholic nuns and their undying romantic devotion to their chosen husband, Jesus Christ. She enrolls in a training program with The Sisters of Blessed Rose, a cloistered convent.

As Cathleen progresses from the postulant to the novitiate levels of her tutelage, her faith is challenged by the harsh, often inhumane realities of being a nun, just as Pope John XXIII's announcement of the Second Vatican Council threatens to alter the course of nuns' lives forever.