A kehua is a Maori ghost - the wandering dead searching for their ancestral home. Without the proper rituals to send them on their way, kehua are forced to remain on Earth to haunt their relatives. They're not dangerous, and they even try to help the living, though it's wise not to listen to them. They tend to get things wrong . In the wake of murder and suicide, a young woman flees New Zealand, hoping to escape the past and find a new life. But the unshriven spirits of the recently departed can't rest peacefully, and are forced to emigrate with her, crossing oceans to finally settle in - of all places - Muswell Hill, London. Here their shadowy flutterings and murmured advice haunts the young woman and her female bloodline across the decades, across the generations. 'Run!' the Kehua whisper. 'Run, run, run!'