One by one, law students in the Inns of Court are killing themselves - or so it seems to all but County Constable Matthew Stock. Matthew knows a murder when he sees it, and soon he's in pursuit of a ghostly killer who is not above trying his skills on Matthew himself. Meanwhile, Matthew's wife, Joan, follows her nose through the brawling, bawdy streets of Elizabethan London, looking for clues to help her husband outwit his murderous nemesis. But who will help her?