Long buried secrets finally come to light as someone has been playing a very long game indeed. Sherlock and John face their greatest ever challenge. Is the game finally over?
Currently, you can only stream Sherlock: The Final Problem on CBC Gem in Canada.
Unfortunately, you cannot buy or rent Sherlock: The Final Problem on any of the streaming services in Canada at the moment.
Sherlock: The Final Problem was released 7 years ago in 2017.
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