Over an evening a wealthy family gathers for a sumptuous dinner in their ostentatious house in the Welsh mountains. The guests are a local business man and a neighbouring farmer and the intent is to secure a business deal to mine in the surrounding countryside. When a mysterious young woman arrives to be their waitress for the evening, the family’s beliefs and values are challenged as her quiet yet disturbing presence begins to unravel their lives. Slowly, deliberately and with the most terrifying consequences.