Sherlock reimagines Sir Arthur Conan Doyle’s detective for 21st-century London, following the brilliant, emotionally detached consulting detective Sherlock Holmes and army veteran Dr John Watson as they form an unlikely, unbreakable partnership solving baffling crimes for the Metropolitan Police. Across four series and thirteen feature-length episodes, the pair face a recurring cast of allies and adversaries — most notably the psychopathic criminal mastermind Jim Moriarty — in a series celebrated for its razor-sharp writing and modern reinvention of a Victorian icon.
Sherlock is a British crime drama created by Steven Moffat and Mark Gatiss, produced by Hartswood Films for BBC One in co-production with BBC Wales and WGBH Boston. The series ran from 25 July 2010 to 15 January 2017 across four three-episode series plus a special, with each 90-minute instalment functioning almost as a standalone film. Benedict Cumberbatch stars as Sherlock Holmes and Martin Freeman as Dr John Watson, a pairing praised for chemistry so immediate that, according to producer Sue Vertue, it was evident the moment the two actors first read together.
Moffat and Gatiss’s central innovation was transplanting Conan Doyle’s Victorian detective wholesale into contemporary London — Holmes uses smartphones and the internet rather than magnifying glasses and Baker Street runners, but retains his essential character: brilliant, arrogant, socially oblivious, and driven by an almost compulsive need to solve puzzles. Watson, freshly invalided home from Afghanistan, provides the humanising counterweight, his own trauma and search for purpose mirroring Holmes’s in ways the show explores with genuine emotional depth beneath its puzzle-box plotting.
The series built a richly drawn supporting cast around its central duo: Una Stubbs as landlady Mrs Hudson, Rupert Graves as the long-suffering DI Greg Lestrade, Louise Brealey as pathologist Molly Hooper, co-creator Mark Gatiss himself as Sherlock’s aloof elder brother Mycroft, and — most memorably — Andrew Scott as Jim Moriarty, Holmes’s psychopathic nemesis, whose performance across the show’s run became one of British television’s most acclaimed villain turns. Each series-ending “event” episode escalated the stakes considerably, from Moriarty’s rooftop confrontation with Holmes at the end of Series 2 to the later exploration of Holmes’s own family secrets in Series 4.
Sherlock became a genuine global phenomenon, exported to over 200 territories and credited with reigniting mainstream interest in the character on a scale not seen since Basil Rathbone’s 1940s films. Cumberbatch and Freeman’s performances launched both actors to international stardom, and the show’s success helped cement “modernised Victorian adaptation” as a viable and popular television format. Filming took place primarily in Cardiff, Wales — including interior sets for 221B Baker Street — with key exterior London locations including North Gower Street (standing in for Baker Street itself) and St Bartholomew’s Hospital, both of which became sites of pilgrimage for fans following the series’ broadcast.
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