Based on the prolific Sir Arthur Conan Doyle mysteries, Sherlock Holmes is on the job again. This time the inmate of a British prison has incorporated stolen Bank of England engraving plates into a series of music boxes he has made and multiple criminals are out to find them. Holmes must be first. Its a weak, thin plot for the final of the Holmes/Watson series but it is still a joy to see Basil Rathbone and Nigel Bruce working off one another. ~ Tana Hobart, All Movie Guide