sentences:  The story begins with a model in the ground-floor store window of French's Department Store in New York City who is demonstrating the features of a suite of ultra-modern furniture.When she pushes a button to reveal the folding bed, the bludgeoned corpse of the wife of the owner of the store tumbles to the floor.The murder case falls into the hands of Inspector Richard Queen of the Homicide Squad and his mystery-writing son Ellery.