When Mike and Gally Martin move to a cottage in Somerset, it's to make a new start. But the relationship comes under strain when Gally forms an increasingly close attachment to an old countryman, Ferney, who seems to know everything about her. What is it that draws them together? Reluctantly at first, then with more urgency as he feels time slipping away, Ferney compels Gally to understand their connection - and to face an inexplicable truth about their shared past.