When a house explodes in a quiet Oxford suburb and a young woman goes missing, Sarah Tucker — a young married woman, bored and dissatisfied with her domestic life — becomes obsessed with finding her. Accustomed to the dull routine of a childless household and hosting her husband’s tiresome business clients, Sarah suddenly begins to question everything she thought she knew.
As her investigation, alongside private detective Zoë Boehm, unfolds, it reveals that people long presumed dead are still alive — while the living are rapidly joining the dead. What begins in a peaceful neighborhood reaches its climax on a remote, inhospitable Scottish island, where Sarah’s search ultimately leads her…