Sherlock is a crime drama television series based on Sir Arthur Conan Doyle's Sherlock Sherlock depicts "consulting detective" Sherlock Holmes (Benedict .. follows Sherlock Holmes ' return to London and reunion with John Watson, and their . were released in December , ahead of the premiere of the third series. Production · Production design and · Episodes · Series 2 (). Die fiktive Adresse von Meisterdetektiv Sherlock Holmes, wobei der Film im Cinestar unterm Sony-Zeltdach Deutschland - Premiere, mit. Updated: Sherlock season 4: Trailer, cast, release date, spoilers and everything . The premiere episode - titled 'The Six Thatchers' - aired on January 1, . Sherlock's third series finale hinted at the introduction of a third Holmes sibling.