In a tiny stained-glass shop hidden in the backstreets of Westminster lies the cracked, sparkling image of an angel.

The owners of Minster Glass have also been broken: Fran Morrison's mother died when she was a baby; a painful event never mentioned by her difficult, secretive father Edward. Fran left home to pursue a career in foreign cities, as a classical musician. But now Edward is dangerously ill and it's time to return.

Taking her father's place in the shop, she and his craftsman Zac accept a beguiling commission - to restore a shattered glass picture of an exquisite angel belonging to a local church. As they reassemble the dazzling shards of coloured glass, they uncover an extraordinary love story from the Victorian past, sparked by the window's creation. Slowly, Fran begins to see her own reflection in its themes of passion, tragedy and redemption.

Fran's journey will lead her on a search for the truth about her mother, through mysteries of past times and the anguish of unrequited love, to reconciliation and renewal.