Sherlock Season 4: Toby Jones’ Villain Is ‘The Purest Evil’

How different would you say Toby Jones’ villain is from the villains and adversaries we’ve seen previously?

Why is Moriarty someone who’s still weighing on Sherlock, even though he’s no longer there?

An original Sherlock Holmes story, by Arthur Conan Doyle, called “The Adventure of the Dying Detective,” introduces the character Culverton Smith.