SHERLOCK 1x2 "The Blind Banker" Reaction & Discussion! | Benedict Cumberbatch | Martin Freeman

Sherlock and Watson investigate a series of deaths marked by mysterious Chinese ciphers. Sherlock deduces the ciphers are numbers written in an ancient Chinese dialect, referencing specific pages and words in books. This leads them to uncover the Black Lotus, an ancient Chinese crime syndicate involved in smuggling valuable antiquities, including a 9-million-pound jade hairpin.

The graffiti at the bank and the victim's apartment, initially thought to be an artist's tag, are revealed to be Chinese numbers (e.g., 'one' and '15'). Sherlock later explains these numbers correspond to page and word entries in a specific book, forming messages. The victim's sister, Sulin, confirms the mark of the Tong (Black Lotus) and its connection to her brother and the stolen artifacts.

The killer, referred to as a 'ninja' by the hosts, gains entry into locked apartments and a high-security bank by scaling walls and using acrobatic parkour techniques. This explains how victims were found in seemingly impregnable, locked-from-the-inside locations.

Sherlock explains the killer 'climbed up the side of the walls, ran along the roof, dropped him through this skylight' and got into the bank by running 'along the window ledge and onto the terrace.' This is demonstrated by the assassin's circus performance later in the episode.

Watson begins a romantic relationship with Sarah, which is immediately tested when their first date is interrupted by Sherlock's case, leading to a dangerous confrontation. This highlights Watson's desire for a normal life contrasted with Sherlock's all-consuming dedication to his work, often at the expense of personal connections.

Watson goes on a date with Sarah at the circus, which Sherlock crashes. Sarah gets involved in the fight with the assassin, even tackling one. The hosts discuss how Sherlock's lack of eating and singular focus on cases mirrors historical figures, contrasting with Watson's more 'normal' needs and desires.

The central stolen artifact is a jade hairpin valued at 9 million pounds. It was stolen by Eddie Van, one of the smugglers, who unknowingly gave it as a gift to his assistant, Amanda. The Black Lotus is determined to retrieve it.

The cipher eventually translates to '9 million quid for jade pin Dragon Den Black Tremory.' Sherlock deduces Eddie Van was the thief based on his purchase of specific hand soap for his assistant, Amanda, and the fact she was wearing the hairpin he brought back from China.