Helping move things along at a nice pace is Mark Gatiss’ script, which is quite strong. Though not his best for the series, he clearly relishes taking the show into a more serious direction, as well as providing lots of customary laughs in the episode’s first half.

Watching "Sherlock" is like dropping in on old friends who are as smart and sarcastic as ever but don’t seem to have as much joy in their lives anymore.

Unfortunately, the season four premiere has revealed that Sherlock’s most promising and divisive element in the wake of the season three finale--the evolving three-way relationship between Sherlock (Benedict Cumberbatch), John Watson (Martin Freeman), and John’s mysterious wife, Mary (Amanda Abbington)--is little more than a giant distraction, a red herring for ... whatever the show has up its sleeve next.

This is the best tv show ever. It hooks you from the very first episode and is so entertaining. At the end of each episode it makes you go AHHHH. The bromance between Sherlock and John is my favorite thing ever. And Sherlock and Molly I LITERALLY DIED. The last episode is definitely my favorite. I can't wait for the next season!

Yeah, well, uh, I still love the acting, but I find this season to be weaker than the previous. Several writing decisions felt odd to me and I wasn't as engaged as I was during the first two seasons. I wouldn't introduce the show to anyone with this season. Overall though I think some of you might still like it.

Apesar de não ser ruim, fica claro que esta temporada chegou ao ponto mais baixo da série, os casos e mistérios parecem ser apenas um background para os acontecimentos. As relações ficaram muito em foco, quando não é o que queremos ver de fato.

Sad to see such a promising series go so bad so fast. The story is so tenous that it doesn't even remotely hang together anymore, with some forced turns and twists that are entirely unlikely and unnecessary to build up to ... nothing much.

This season, the show can be summarized by 1 sentence: 'lower IQ of the whole street' (by the season 1's famous quote). It totally lost the wits and intellect and non-stop mysteries that made season 1 and 2 so successful, rather it becomes a soap opera, super hero movie with the plots and story lines descent to such an unbelievability or fantasies that even people with average IQ wouldn't buy at all. I didn't like season 3 much, and expect season 4 would make up for it, but it got even worse now, and I don't think the show can recover from this if they are going to make more of it and keep the same stupid plot lines. Don't get me wrong, I got what the writers trying to do with this season, but they had such bad ideas in their writing that this show becomes unrecognizable from previous seasons, except actors in it.