The Pearl of Death (1944)

Even though "The Pearl of Death" primarily remains a mystery-thriller, the film just bathes in a genuine horror atmosphere and that's all thanks to the introduction of its spooky villain in the shape of "The Creeper". This impressive character is mostly appearing off-screen or in the shadows, and yet his presence alone makes "The Pearl of Death" the most unsettling of all Sherlock Holmes movies. The Creeper, played by Rondo Hatton who suffered from the incurable Acromegaly-disease, plays a merciless killer who always slays his victims in the same way, namely by breaking their backs. Sherlock Holmes and Dr. Watson cross his path whilst trying to recover a stolen pearl with great historical (and financial) value. Holmes does whatever he can to get back the pearl, since he was responsible for losing it while pointing out the security-weaknesses of the British Museum. Roy William Neill does another classy job directing the screenplay based on Sir Arthur Conan Doyle's story "The Six Napoleons". The dialogues are extraordinary well written and marvelously rattled off by the great cast. There are fewer obscure filming locations in this installment but, opposed to that, there's a big collection of imaginative disguises and thrilling booby-traps. As usual, the characters of Dr. Watson and Scotland Yard inspector Lestrade provide the film with a welcome comic relief.