When a woman receives a series of valuable pearls from an unknown party after the disappearance of her father, Sherlock Holmes is hired to investigate.



(novel), (dramatisation) | 2 more credits »

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Episode cast overview, first billed only:
Paul Daneman ...
Ailsa Grahame ...
Howard Goorney ...
Ahmed Khalil ...
Lal Rao (as Ahmed Kahlil)
Syd Conabere ...
McMurdo (as Sydney Conabere)
Annabella Johnston ...
David Boliver ...
Mr. Mordecai Smith (as David S. Boliver)
Zena Keller ...


When she receives pearls beyond price and a mysterious message from an anonymous source, Miss Mary Morstan goes to the famous consulting detective of 221B Baker St., Mr. Sherlock Holmes for advice in how to answer the message. Together with his staunch comrade, Dr. John Watson, and a mutt named Toby, Holmes tracks down the secret of the Sign of Four. Written by Kathy Li

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Horror | Crime | Drama | Mystery





Release Date:

16 December 1968 (UK)  »

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Technical Specs

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Aspect Ratio:

1.33 : 1
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Did You Know?


Athelney Jones: It's quite simple, really. The two brothers have a quarrel over the inheritance. Then, one kills the other so as to claim the whole of it for himself, leaving the body here! Quite simple!
Sherlock Holmes: And the dead man gets up to lock the door from the inside?
Athelney Jones: ...There's a flaw there... Somewhere...
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User Reviews

Sorry to burst the bubble of the Other commenter's but....
23 July 2008 | by (United States) – See all my reviews

.... this Sign of Four was made in 1968 and starred Peter Cushing as Holmes. So why are most commenter's discussing Jeremy Brett's version here? And why is the picture associated with this TV episode a picture of Jeremy Brett? Peter Cushing admittedly did not like the Holmes he portrayed on for the TV episodes, but to me he is not what is wrong with this version or the other Holmes adaptations he has done. The made for TV Holmes of the English 60s makes you feel like you are actually watching a play rather than a movie. I think this is a great aspect to viewing an already known piece of material. (I am sure that this will not be the first sign of four anyone has seen nowadays.) It shows the viewer a different perspective of the characters. It definitely makes you feel like you are actually in the room with the actors. With that being said I give this version a 7.

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