For some curious reason Holmes' cluttered Baker Street apartment has a photograph of a beardless Abraham Lincoln.

One of the first modern-day Sherlock Holmes films starring Basil Rathbone and Nigel Bruce which did not feature Nazis or Nazi sympathizers as villains, and which made no reference to them.

References Sir Arthur Conan Doyle's original Sherlock Holmes story, 'The Adventure of the Six Napoleons'.

Rondo Hatton would play a different CREEPER in two follow-ups not related to this film, "House of Horrors" and "The Brute Man, " both completed in 1945, but released following Hatton's death, which occurred on February 2, 1946.

Shooting lasted from April 11-May 1, 1944, released September 22.

The ninth of fourteen films based on Arthur Conan Doyle's fictional consulting detective Sherlock Holmes starring Basil Rathbone as Sherlock Holmes and Nigel Bruce as Doctor Watson.