Lord Peter is invited to a wedding at the beginning of World War I, starting a chain of events that will lead to murder after the war is over.
20 years after his first visit, Lord Peter returns to the scene of a crime to find that it in fact hadn't been solved.
A mutilated body is dicovered hidden, but the coroner eclared it death by natural causes.
Nature - not Wimsey - sheds the final light on the mystery. Over the flooded Fenland the bells proclaim the death of a man...and the end of a crime.