Castignac, a beautiful farmhouse in the South-West of France, is a shared holiday home for a group of Brits. The shocking death of Ian, one of the group's members, taints the happy memories of the house and the group decides to try and sell it on. However, another member, Tessa, senses secrets and endeavors to find out more... The present-day story is interwoven with chapters about the past, and the life story of the Castignac farmer is revealed through flashbacks to the First World War. The hidden history of this farmhouse is brought further into question when Tessa unveils a drawing of a wild orchid, called the 'Hanged Man' in French. There's one person that holds all the answers, but they're hiding a secret of their own. Can Tessa discover what really happened at the farmhouse and in doing so, free it of its demons?