The thing about Sherlock, it’s so beautifully scripted - every time you re-watch it there’s some new element that makes the show even richer and deeper than you thought it was before. Every time. Even when you don’t think it could possibly get any better or meaningful, it does.

Cryptic phrases, tiny little clues, slight displays of emotion.

The actors are quite brilliant for successfully bringing all those layers to life. Quite, quite brilliant. It can’t possibly be easy.