Benedict Cumberbatch in a top hat. Go forth, Internet.
Here’s the first promo image for the Sherlock one-off special. BBC released the above look at Cumberbatch—looking a bit like a penguin—and co-star Martin Freeman all dressed up.
The special starts production in January and is expected to air in the U.K. sometime next year. The Sherlock team has also committed to an official fourth season.