Sherlock Holmes in Washington (1943) is the fifth film in the Basil Rathbone/Nigel Bruce series of Sherlock Holmes movies.

A British agent carrying a vital document is murdered on his way to deliver it in the USA. Holmes deduces he was carrying the document in the form of microfilm and goes to Washington with Watson to find the killer and retrieve the document before it falls into the hands of an "international spy ring". Before his death, the agent managed to pass the microfilm into the unwitting hands of a Washington debutante and bride-to-be. There are some amusing moments when the microfilm, which has been inserted into a "V for Victory" match folder, gets passed from hand to hand at a party unknowingly, and at one point is discarded by the chief criminal. Another World War II cliché comes into play in the form of the Washington housing shortage, meaning that the debutante, rolled up in a rug, can be smuggled out of the apartment in her aunt's home that's being renovated for her. Holmes and Watson track down the criminals, rescue the bride-to-be and regain the microfilm.
Basil Rathbone – Sherlock Holmes
Nigel Bruce – Dr. Watson
Marjorie Lord – Nancy Partridge
Henry Daniell – William Easter
George Zucco – Heinrich Hinkel, alias Richard Stanley
John Archer – Lt. Pete Merriam