After solving the mystery of Whose Body Lord Peter Wimsey holidays in the wilds of Corsica, but, tiring of the rustic and wanting a bit of luxury he heads to Paris where he gets the shocking news that his brother, the Duke of Denver, has been arrested for murder. And the victim was Denis Cathcart, his sister’s fiancée. Wimsey heads for home straight away, and together with Inspector Parker he begins to investigate what actually happened.