"Sherlock: His Last Vow" on Masterpiece Mystery! airs Friday at 10:30 pm
A case of stolen letters leads Sherlock Holmes into a long conflict with Charles Augustus Magnussen, the Napoleon of blackmail, and the one man he truly hates. But how do you tackle a foe who knows the personal weakness of every person of importance in the Western world?
"Sherlock: His Last Vow" on Masterpiece Mystery! airs on Friday, August 15th at 10:30 pm on channel 3.