Gloria Guild is the singing 'Glory' of the thirties and the millionairess wife of Count Carlos Armando, renowned only for his succession of wealthy wives. When she is murdered, it seems obvious that it must be him, but he has a perfect alibi. So who could he have got to do it for him? The only clue left is the word 'f a c e', penned in her dying scrawl. But whose face? And why? Ellery Queen investigates.