Sherlock writer and actor Mark Gatiss marks the start of filming, Image: BBC/Hartswood Films
Sherlock writer and actor Mark Gatiss marks the start of filming, Image: BBC/Hartswood Films
The BBC and Hartswood Films have confirmed that filming is now underway on the much-anticipated fourth series of Sherlock.

Series four begins with the nation’s favourite detective back on British soil as Doctor Watson and wife Mary prepare for their biggest ever challenge – becoming parents.

Sue Vertue, Executive Producer for Hartswood Films, said: “It’s taken a while to gather everyone together for series four, but I can confidently say I think it will be well worth the wait!”

The first of the three feature-length episodes will be directed by Rachel Talalay, who has worked as a director, producer, and professor in film and television for more than 25 years, having previously directed Doctor Who, The Flash and The Wind In The Willows.

Co-creators, writers and executive producers Steven Moffat and Mark Gatiss commented: “Sherlock series four – here we go again!

“Whatever else we do, wherever we all go, all roads lead back to Baker Street – and it always feels like coming home.

“Ghosts of the past are rising in the lives of Sherlock Holmes and John Watson bringing adventure, romance and terror in their wake.

“This is the story we’ve been telling from the beginning. A story about to reach its climax…”

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