Off-screen cases refers to cases that Sherlock Holmes takes that are referred to at some point but are not described, or in the case of an adaptation, shown on screen.
This is briefly mentioned during The Hound of the Baskervilles, in which Sherlock Holmes says, "I was exceedingly preoccupied by that little affair of the Vatican cameos, and in my anxiety to oblige the Pope I lost touch with several interesting English cases".
The Giant Rat of Sumatra
This is mentioned by Holmes in "The Adventure of the Sussex Vampire". He said; "Matilda Briggs was not the name of a young woman, Watson, ... It was a ship which is associated with the giant rat of Sumatra, a story for which the world is not yet prepared".
These are a collection of cases that are either referenced in episodes or in the character blogs.
The Green Ladder
Blog Entry: The Green Ladder
The Green Ladder is a case that Sherlock mentions just before being introduced to John Watson. When Sherlock first meets John in the lab at Barts he borrows John's phone and texts an unknown person, probably DI Greg Lestrade, that he should arrest the brother if he has a green ladder. (A reference to an outline for a Sherlock Holmes story found among Conan Doyle's papers.)
The Aluminium Crutch
Blog Entry: The Aluminium Crutch
Diamonds are forever
Blog Entry: Diamonds are forever
Cases in "A Scandal in Belgravia"
At the start of "The Hounds of Baskerville" Sherlock arrives back at 221B Baker Street covered in blood carrying a harpoon in his hands. His appearance is due to a case which he managed to solve by shooting a dead pig with his harpoon. Sherlock says that he had to catch the tube back to the flat because the cabs would not let him in. (Possibly a reference to the murder of Peter Carey in the original books.)
The Six Thatchers
During series four's The Six Thatchers, there is a montage of Sherlock solving cases whilst he waits for Jim Moriarty to make his move after the "Do you miss me?" message. These case are largely unknown as we only see fractions of them and John's blog has stopped being updated (In real life). We see part of the entries that John writes for the blog (in universe) on screen and know that the cases involve Greg Lestrade, DI Dimmock and DI Hopkins.
The Circus Toro
A limbless body decomposing inside a trunk is left luggage office in Waterloo station couldn't be identified...
The Canary Trainer
Andrew Wilson was an unusual man with an unusual hobby. He seem to have no connection with the man whose liffe was abruptly ended one freezing night in November.
The Cardiac Arrest
Joel Fentiman was found strangled in the bedsit he shared with his brother. They had alway got on well and there was no signs this situation had changed...
- ↑ Moffat, Steven (writer) & McGuigan, Paul (director). (25 July, 2010). "A Study in Pink". Sherlock (2010). Series 1. Episode 1. BBC One.
- ↑ Moffat, Steven (writer) & McGuigan, Paul (director). (1 January, 2012). "A Scandal in Belgravia". Sherlock (2010). Series 2. Episode 1. BBC One.
- ↑ Template:Cite Sherlocik2010