What is the sinister secret behind a gruesome series of killings and the smashing of several busts of Beethoven? Sherlock Holmes and Dr. Watson (Basil Rathbone, Nigel Bruce) will find out, but first they must deal with the grotesque Creeper (Rondo Hatton). Miles Mander, Evelyn Ankers co-star. Based on Conan Doyle's "The Six Napoleons." 69 min. Standard; Soundtrack: English mono.