When a young, unidentified woman is pulled alive and well from Sydney Harbour in 2013, the connections to another woman - found in similar circumstances forty years earlier - present psychiatrist Kathryn Brookley with a terrible decision as the events of the present and past begin to mirror each other and the gap between truth and illusion shrinks. When the young woman goes further and declares that she has lived continuously since coming to 'understanding' in the 14th century, her vivid accounts of life, love, childbirth, and loss in the Middle Ages seem so authentic that they test Kathryn's scientific objectivity to the limit. As Kathryn delves she discovers that she is not the only one whose habitual assumptions about life have been torn asunder by an apparent experience of the miraculous in relation to the mystery woman. But it is the emotional, spiritual and mystical insights that emerge from the linking of all the facets of this mystery that affect Kathryn and others most profoundly, reflecting the commonality of human experience across the ages and the deep yearnings within all of us.