Fran Morrison, a peripatetic musician, is summoned home to London after her father has a stroke, and she finds herself in charge of the family business, a stained glass workshop in an historic backwater of Westminster that was founded in the Victorian heyday of stained glass-making. When the vicar of the local church asks Fran and her father's assistant Zac to restore a shattered 'angel' window, her research into the window's origins amongst her father's papers uncovers a fascinating and moving story from the Victorian past that resonates in her own life: a romantic friendship between the artist/craftsman who designed and made the window in 1880, and the daughter of the man who commissioned it. Fran also yearns to find out the truth about what happened to her mother, who died when she was small - and why her father has always refused to discuss what happened. But in the present Fran has other choices to make. As she makes a new life for herself in London she discovers that, if you know where to look, there are angels all around us.