In the BBC series Sherlock, what is the name of the first episode of series 1?

“A Study in Pink” is the first episode of series 1 of the BBC television series Sherlock.

The episode introduces Sherlock Holmes, Dr John Watson and the modern version of 221B Baker Street. John, a former army doctor returning from Afghanistan, meets Sherlock through their mutual acquaintance Mike Stamford and becomes his flatmate and investigative partner.

The title is a modern variation on Arthur Conan Doyle’s first Holmes story, “A Study in Scarlet.” The television episode replaces the original story’s details with a contemporary serial-killing investigation involving victims who appear to have taken their own lives.

“A Study in Pink” was written by Steven Moffat and directed by Paul McGuigan. It establishes the show’s distinctive visual language, including on-screen text messages and Sherlock’s rapid, often controversial deductions. The episode also introduces Detective Inspector Greg Lestrade and the criminal network that later becomes part of the series’ larger mythology.