'A Study in Scarlet' is the first published story of one of the most famous literary detectives of all time, Sherlock Holmes. Here Dr. Watson, who has just returned from a war in Afghanistan, meets Sherlock Holmes for the first time when they become flat-mates at the famous 221 B Baker Street. In 'A Study in Scarlet' Sherlock Holmes investigates a murder at Lauriston Gardens as Dr. Watson tags along with Holmes while narratively detailing his amazing deductive abilities.