This little farce-comedy pits Holmes and Watson against their greatest foe the evil and sinister Professor Moriarty. The play begins with the villain's dramatic capture. Soon after Mrs. Hudson announces the arrival of heavily-veiled women who have come on matters of the greatest delicacy. Laughs come fast and furious as the audience views a typical day in the life of the master detective who has just discovered the science of fingerprinting. It is Watson who brings the startling news that Moriarty has escaped once more to pursue his life of crime and evil. Now it's up to Holmes to prove via fingerprints the criminal's true identity. It's a hilarious revelation that explains why Holmes was never able to outwit the foxy professor.