Eleven-year-old Sean Robinson furiously cycled his Raleigh racing bike on a hot summer's day in the direction of Old Mill Lane. Sweat poured down his face as he reached the lane that held a strange and chilling fascination for the young boy. Did he really see a ghostly figure of a young girl in the old mill house? Twenty-five years later the same Sean Robinson, a Metropolitan Police detective in hospital with a mystery stomach complaint, is still troubled by nightmares featuring that ghostly young girl. Sean leaves hospital to convalesce with his young daughter and deeply troubled wife, whilst his colleagues try desperately to catch a brutal baby killer. Drawn back to the Old Mill House by his nightmares Sean is troubled to discover links between the ghostly young girl, his wife and a threat to his young daughter. Mike Nelson's supernatural thriller sees the detective move between the cruel streets of Victorian London and the city in the 1990's.