Un cadàver a la biblioteca

It's seven in the morning. The respectable Colonel Bantry and his wife wake up frightened by the cries of a maid who claims to have found in the library the body of a girl with a lot of make-up and provocatively dressed, with obvious signs of having been strangled. But who is the unfortunate one? How did you get here? And what does it have to do with the corpse of another girl who later appears charred in an abandoned quarry? Gossip will soon spread if it is not remedied. And in this case, the remedy is called Miss Marple, an adorable old woman who would never stop helping a friend who sees her reputation in danger...