The Blind Banker

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"The Blind Banker"
Sherlock episode
The Blind Banker.png
Title card of the episode
Episode no.Series 1
Episode 2
Directed byEuros Lyn
Written byStephen Thompson
Based on"The Adventure of the Dancing Men"
by Arthur Conan Doyle
Featured music
Cinematography bySteve Lawes
Original air date1 August 2010 (2010-08-01)
Running time88 minutes
Guest appearances
Episode chronology
← Previous
"A Study in Pink"
Next →
"The Great Game"
List of episodes

"The Blind Banker" is the second episode of the television series Sherlock, first broadcast on BBC One and BBC HD on 1 August 2010. It was written by Stephen Thompson and directed by Euros Lyn.

Sherlock is a loose adaptation of Arthur Conan Doyle's Sherlock Holmes stories, set in the modern day. "The Blind Banker" follows Sherlock (Benedict Cumberbatch) and John Watson (Martin Freeman) as they investigate a series of ciphers representing numbers in an ancient Chinese numeral system which have been left by a Chinese smuggling ring who seem intent on killing to retrieve an item one of them stole.

It attracted 8.07 million viewers on BBC One and BBC HD. Critical reception was positive, though some reviewers felt it was inferior to the first episode.


At the National Antiquities Museum, Chinese pottery expert Soo Lin Yao (Gemma Chan) sees something frightening and disappears. Meanwhile, Sherlock takes John to a high-powered international finance house. There, Sebastian Wilkes (Bertie Carvel), an old university acquaintance of Sherlock's, asks for help. A break-in occurred in which a seemingly meaningless pair of symbols were spray-painted onto a portrait of a banker. Sherlock realises it was a message meant for one man – Edward van Coon of the Hong Kong desk – who has not come to work. Sherlock breaks into van Coon's locked flat and finds him dead. The police, under Detective Inspector Dimmock (Paul Chequer), regard it as a suicide, though Sherlock sees it as murder. Soon, journalist Brian Lukis (Howard Coggins) is killed inside his locked flat. Sherlock and John investigate, and in a library where Lukis had been, they find the same mysterious symbols painted on a shelf.

John, seeking financial security, obtains a job as locum at a local surgery run by Dr. Sarah Sawyer (Zoe Telford). Later, Sherlock and John discover a link between the two men; both had just returned from China, and both went to an oriental curio shop, "The Lucky Cat". There, Holmes learns that the symbols are ancient Chinese Hangzhou numerals (correctly Suzhou numerals). Sherlock notices that Soo Lin's flat is empty and snoops around, where he finds an intruder; a brief fight ensues, but the attacker flees. At the museum, they then discover the same symbols on a statue. Then, with the help of graffiti artist "Raz" (Jack Bence), Sherlock and John find more symbols graffitied on a wall and struggle to decode the message. Back at the museum, Holmes surprises Soo Lin in hiding, who explains the code is linked to the criminal ring "Black Lotus Tong", of which she was once a member. Unfortunately, before she can fully decode the message, she is killed by her brother, another criminal gang member. Sherlock realises Van Coon and Lukis were members of the Tong, involved in smuggling valuable antiquities to sell in London. They were killed because one of them stole something.

Sherlock knows the message is in the form of a book cipher, and he and John spend the night going through the first two victims' books, trying to find the solution. John's first day at work does not go well, but Sarah covers for him, and they organise to go out on a date. Sherlock arranges tickets to a travelling Chinese circus. While John and Sarah enjoy the classic escapology and acrobatics acts, Sherlock snoops around backstage and is attacked, but with Sarah and John's help, the three escape. While Sherlock continues to search for the solution to the book cipher, John and Sarah are kidnapped; John is mistaken for Sherlock by the villains, who want him to reveal the location of the missing "treasure" in return for Sarah's life.

Fortunately, Sherlock cracks the code using an A-Z London Street Atlas guide, and rescues John and Sarah. He also realises the elusive "treasure" has been in plain sight all the time: A jade hairpin belonging to the Chinese royal family, worn by van Coon's secretary/mistress Amanda (Olivia Poulet), who had received it as a gift from van Coon. However, Shan, the Black Lotus Tong's leader, escapes and contacts a person via online "chat" identified only by the initial "M" who had helped the gang to get a foothold in London. The episode ends a moment before a sniper shoots Shan after "M" types that Shan will not fail again.


According to Moffat, the episode takes the concept of coded messages from "The Adventure of the Dancing Men" (using pictorial messages).[1][2][3]

Alan Kistler of Newsarama has pointed out other potential inspirations such as the use in The Valley of Fear of a code "based on a book that many people would own."[4] A murder victim found inside a locked room accessible only by climbing might be an allusion to The Sign of the Four.[4]

Broadcast and reception[edit]

"The Blind Banker" aired on BBC One on 1 August 2010. Overnight figures showed that the episode had been watched by 6.442 million viewers on BBC One, a 25.6% audience share, while 210,000 watched on BBC HD an hour later.[5] Final consolidated figures rose to 8.07 million, with both BBC One and BBC HD taken into account.[6]

The episode received mixed to positive reviews from television critics. Sam Wollaston of The Guardian thought that "The Blind Banker" was better than the series opener, calling the plot "more satisfying ... clearer and more self-contained". He particularly praised the relationship between Sherlock and Watson.[7] Radio Times reviewer David Butcher wrote that the episode "didn't have the scripting pizzazz of the others, but it did have one big advantage: Zoe Telford. She played a love interest for Martin Freeman's Dr Watson and briefly threatened to bring a strong female character into the mix — only to be wasted on damsel-in-distress duties. We can only hope creator Steven Moffat will bring her back for the second run".[8] IGN's Chris Tilly rated the episode 7 out of 10, describing it as "a lacklustre effort that fails to do justice to that smart and sophisticated start". He praised Lyn's directing and the character developments, especially of Watson, but Lestrade did not appear and the plot "fails to fully engage, the story feeling like 60-minutes of material dragged out over 90".[9]


  1. ^ "Steven Moffat: "Cos people have asked: tonight's Sherlock ("The Blind Banker") is loosely based on The Dancing Men."". Retrieved 6 December 2010.
  2. ^ "Steven Moffat tells us about 'Who' vs. 'Sherlock'" (YouTube video). Digital Spy. 22 July 2010. Archived from the original on 15 December 2021.
  3. ^ Hale-Stern, Kaila (4 May 2012). "Benedict Cumberbatch and Steven Moffat share secrets of Sherlock season 2!". io9. Retrieved 29 December 2017.
  4. ^ a b Kistler, Alan (1 December 2010). "BBC's new SHERLOCK Annotations: Episode 2, 'Blind Banker'". Newsarama. Retrieved 29 December 2017.
  5. ^ Deans, Jason (2 August 2010). "Sherlock on the case with 6.4m". The Guardian. Retrieved 5 May 2012.
  6. ^ "Weekly Top 30 Programmes". Broadcasters' Audience Research Board. Retrieved 5 May 2012.
  7. ^ Wollaston, Sam (1 August 2010). "TV review: Sherlock, Alan Titchmarsh's Walks of Fame and Come Dine with Me Down Under". The Guardian. Retrieved 5 May 2012.
  8. ^ Butcher, David. "Sherlock: Series 1-2. The Blind Banker". Radio Times. Retrieved 5 May 2012.
  9. ^ Tilly, Chris (2 August 2010). "Sherlock: "The Blind Banker" Review". IGN. Retrieved 5 May 2012.

External links[edit]