Sherlock depicts "consulting detective" Holmes, assisting the Metropolitan Police Service, primarily Detective Inspector Greg Lestrade (Rupert Graves), in solving various crimes. Holmes is assisted by his flatmate, Dr John Watson, who has returned from military service in Afghanistan. Although the series depicts a variety of crimes and perpetrators, Holmes' conflict with his archenemy Jim Moriarty (Andrew Scott) is a recurring feature. Molly Hooper (Louise Brealey), a pathologist at Bart's Hospital occasionally assists Holmes in his cases. Other recurring roles include Una Stubbs as Mrs Hudson, Holmes and Watson's landlady; and co-creator Mark Gatiss as Sherlock's brother, Mycroft Holmes.
Click on episodes to watch