Whilst this might seem like a funny story - which indeed it was - I didn't recognise it as good old, reliable Sherlock. It was a great – stand-alone play about another person, but this just wasn't Sherlock.
To me, It was like having a new script writer, who hadn't read or seen the previous Sherlock stories.
For example, Sherlock's meticulous palette would have tasted the spirit in his drinks,,, & he would realise what was going on.
Even if he didn't, he would have realised something was amiss when he started to lose the plot. He wouldn't allow himself to lose his marbles - that's the whole core of his very being (I'm assuming he isn't into opium now ?).
Nor would he act so slushy at the wedding - it just isn't in him.
I will concede - it was a touching moment revealing the pregnancy, & the few lines following that.
Like most interlopers, I initially thought Mary was a bad ‘un, working for one of the Worlds worst groups, & would meet a grizzly end. But then, Sherlock did give her ‘the once over’ when they first met.
Great acting by all concerned, but I hope it returns to the real Sherlock now though.
If Mr Gatiss wants to write funny stories - that's fine - he does a damn good job of 'em, but please, not with our hero.