A young woman falls asleep on a deserted beach and wakes to discover the body of a man whose throat has been slashed from ear to ear…The young woman is the celebrated detective novelist Harriet Vane, once again drawn against her will into a murder investigation in which she herself could be a suspect. Lord Peter Wimsey is only too eager to help her clear her name. Murder brings Lord Peter and Harriet together again: when walking on a Dorset beach, Harriet discovers a corpse, the throat cut from ear to ear. Lord Peter comes to her assistance, and their inquiries lead from a distinctive razor blade to the salons of London's fashionable Jermyn Street, from a Russian émigré and professional dance-partner to a mysterious man with one shoulder higher than the other. As they investigate the trail of coded messages and secret agents, Harriet and Lord Peter's relationship becomes as tangled as the cat's-cradle of hints and clues that they are trying to unravel.