An old widow is brutally killed in the parlour of her cottage `Mrs McGinty's dead!' `How did she die?' `Down on one knee, just like I!' The old children's game now seemed rather tasteless The real Mrs McGinty was killed by a crushing blow to the back of the head and her pitifully small savings were stolen Suspicion falls immediately on her lodger, hard up and out of a job Hercule Poirot has other ideas - unaware that his own life is now in great danger