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Watch the First Trailer for ‘Sherlock’ Season 4

PBS Masterpiece has finally released a glimpse at the upcoming season of hit BBC show Sherlock. 

The teaser remains mysterious about a lot, including exactly which Arthur Conan Doyle stories the fourth season will take on, but does seem to feature a brilliant detective that is worse for the wear and undoubtedly battling some demons. The teaser also offers a glimpse at previously announced new villain, Toby Jones.

The new season will premiere sometime in 2017. Watch the teaser below.

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