As promised, Sherlock is returning to the BBC this year, but with a twist — the entire special (not to be confused with Series 4) will be a period piece set in Victorian London.
But you probably knew that already, didn’t you?
As we previously revealed, the standalone special will also air in select theatres — details to come when we and the rest of the world actually have them.
For now? The dimly lit trailer above will have to tide you over.
Don’t worry, there are jokes about hats and living in the 19th century. Plus mustaches. All the mustaches.