Sherlock Holmes is back! Dr. Watson's Magnum P.I. mustache! New love interest! Mrs. Hudson screaming! This and many more moments worthy of any rabid "Sherlock" fan can be found in the new interactive trailer released by BBC One.
Warning: Spoilers ahead, so if you've never watched "Sherlock" or are catching up (there are only three episodes a season) stop reading now. … Read more