That omniscient onlooker, Ellery Queen, pondering over rather than preventing the succession of murders in Wrightville which pattern a childhood jingle when a rich man, a poor man, a beggar man and a thief are killed- a doctor and a lawyer are the next in line. And it is not until Queen himself- the ""chief""- is endangered that the murderer is exposed and a rather meaningless chain of casualties is explained. Not as high an I.Q. for E.Q. this time -- but practised.