What to expect from the upcoming special of "" is revealed. Co-creator Steven Moffat opens up that the show which started as a modern day re-interpretation of Sherlock Holmes will return to the original time period in Victorian London for the special.
"The special is its own thing," he teased to EW. "We wouldn't have done the story we're doing, and the way we're doing it, if we didn't have this special. It's not part of the run of three episodes. So we had this to do it - as we could hardly conceal - it's Victorian."