Sherlock is a crime drama based on the detective series by Sir Arthur Conan Doyle, recreated by Steven Moffat and Mark Gatiss.

We’re now eagerly awaiting the fourth series of the highly rated show, which is set to be released in the new year.

It’s been almost a year since we last had our Sherlock fix where we saw Holmes and his partner John Watson take on The Abominable Bride. With just a couple of weeks to wait until the show is back in our lives, here’s a quick look at what’s to come.

Sociopath detective Sherlock Holmes and best friend Doctor John Watson are set to face their most dangerous rival yet in the form of Culverton Smith played by Toby Smith. Little has been revealed about the character apart from, in the words of co-creator Steven Moffat, he’s ‘disgusting’.

Moffat said of the actor, ‘he would get into the mode of being genuinely scary…and he is terrifying. But then he would’t really want to talk to anybody while he was in that mode’. Taking over from the series three villain Charles Augustus Magnussen, Jones has got some big shoes to fill in terms of being a horrible character, but it seems that he’s taken on the role brilliantly.

Not only do the pair have Culverton Smith to contend with, but it seems that Watson and his wife Mary are now parents as well. The birth of character Rosamund Mary Watson was announced in the traditional way in The Daily Telegraph this week.

It will be interesting to see how both Watson and Sherlock adapt to the birth of Mary and what effect it will have on their work.

The series is made up of three episodes – The Six Thatchers, The Lying Detective and The Final Problem, with the first being shown on BBC1 at 8:30pm on New Year’s Day.

The creators have revealed that ‘ghosts of the past are rising in the lives of Sherlock Holmes and John Watson bringing adventure, romance and terror in their wake’ and ‘this is the story we’ve been telling from the beginning. A story about to reach its climax…’

That doesn’t mean that this is the last series however, as Benedict Cumberbatch has assured fans of the show that it won’t be ending after series four – to everyone’s relief.