Sherlock (2010– )
151 user 19 critic

The Final Problem 

A dark secret in the Holmes family rears its head with a vengeance, putting Sherlock and friends through a series of sick, manipulative psychological and potentially fatal games.


Benjamin Caron

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Episode cast overview, first billed only:
Benedict Cumberbatch ... Sherlock Holmes
Martin Freeman ... Dr. John Watson
Mark Gatiss ... Mycroft Holmes
Una Stubbs ... Mrs. Hudson
Rupert Graves ... DI Lestrade
Louise Brealey ... Molly Hooper
Amanda Abbington ... Mary Watson
Andrew Scott ... Jim Moriarty
Sian Brooke ... Eurus Holmes (as Siân Brooke)
Art Malik ... Prison Governor
Timothy Carlton ... Mr. Holmes
Wanda Ventham ... Mrs. Holmes
Simon Kunz ... Sir Edwin
Richard Crehan Richard Crehan ... Ben
Ralph Ineson ... Vince


Long-buried secrets finally catch up with the Baker Street duo. Someone has been playing a very long game indeed and, alone and defenseless, Sherlock and Dr Watson face their greatest ever challenge. Is the game finally over? Written by BBC One

Plot Summary | Add Synopsis


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Release Date:

15 January 2017 (UK) See more »

Also Known As:

The Final Problem See more »

Company Credits

Production Co:

Hartswood Films See more »
Show more on IMDbPro »

Technical Specs




Aspect Ratio:

1.78 : 1
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Did You Know?


Eurus tells Sherlock that he has to solve his first case ever - 'The Musgrave Ritual'. In the works of Sir Arthur Conan Doyle "The Adventure of the Musgrave Ritual" is (chronologically) the first case solved by Holmes. See more »


When Eurus is a little girl she has brown eyes, when she is Johns therapist, she takes out a brown contact lens revealing blue eyes. See more »


[first lines]
Girl on Plane: Mummy?
[looks around and sees all other passengers are unconscious]
Girl on Plane: Mummy. Wake up! Wake up! Mummy!
See more »

Crazy Credits

ANEMOI-these are the letters in red in the end credits-the ANEMOI were the gods of the four winds--Boreas (the north wind), Zephyrus (the west wind), Notus (the south wind), and Eurus (the east wind). It is also an anagram of "I AM ONE". See more »


References All About Eve (1950) See more »


The Number of the Beast
Written by Steve Harris
Performed by Iron Maiden
See more »

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User Reviews

Spectacularly over the top tension and thrill in what could be the last we see of Sherlock.
16 January 2017 | by sachinkr-07449See all my reviews

So the FINAL PROBLEM is here and hands down Moffat and Gattis have a commendable job to create the most tension filled and powerfully emotional episode of Sherlock till date. First of all those who are saying that Sherlock has lost its touch just don't listen to them because this episode is just mind blowing. You will find yourself discovering a new emotional side to Sherlock's character, the most powerful moment of the series featuring Molly Hooper, a highly entertaining and applaud-ably brilliant cameo, Cumberbatch's best performance as Sherlock till date and the dark secrets of the Holmes family disclosed.

Sian Brooke has just become the most menacing Sherlock villain of all time and Mycroft getting better screen presence are the high points or THE FINAL PROBLEM.

But despite all these exhilarating moments ,the climax is a bit let down but never the less we saw a humane side to Sherlock and a new angle to Mycroft's character. It may not reach perfection but has provided us with a more than satisfying possible ending to the world's most famous detective.

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