One April evening in 1779, Martha Ray, the pretty mistress of a famous aristocrat, was shot dead at point-blank range by a young clergyman who then attempted to take his own life. Instead he was arrested, tried and hanged. In this fascinating new book, John Brewer, a leading historian of eighteenth-century England, asks what this peculiar little story was all about. Then as now, crimes of passion were not uncommon, and the story had the hallmarks...