"1911: Inside an asylum on the edge of the Yorkshire moors, where men and women are kept apart by high walls and barred windows, there is a ballroom, vast and beautiful. For one bright evening every week, they come together and dance. When John and Ella meet, it is a dance that will change two lives forever. Set during the heat wave in the summer of 1911 at the end of the Edwardian era, this is a tale of unlikely love and dangerous obsession, of madness...