On the death of her mother, Louise returns to her home town on the outskirts of Manchester. Her mother's only bequest is a photograph album in which Louise finds the face of another woman - strangely like her own - which seems to have been excised from the family tree. Louise's quest to learn about her great-aunt becomes a gripping investigation into the lost past, a mission to learn about her family's dark secret and a journey towards accepting her own present.