A U.S. marshal and her prisoner are gunned down outside London's Heathrow Airport just as the prisoner is to testify against the head of a violent animal-rights group. Leeds Detective Sergeant Keen Dunliffe doesn't seem like the right man for the case, except that he has the undercover experience and knowledge of Yorkshire, the terrorists' backyard. He's ordered to head up a sting operation with Rachel Colver, an inexperienced police constable.
When a woman turns up drowned on the grounds of a royal estate, Sergeant Keen Dunliffe of Leeds, West Yorkshire, is hoping it's just a case of a drunken skinny-dipping accident. But when the woman turns out to be a historian, whose specialty is eighteenth-century English royalty and politics, and who was attending a conference at a local university, it's too much of a public relations nightmare to take lightly.