- Country: UK
- Genres: Mystery
- Release: 1974-12-27
- Director: James Cellan Jones
- Writers: Kingsley Amis
- Language: English
- Stars: Edward Fox , Elaine Taylor , Christopher Cazenove , Jeremy Clyde , John Westbrook , Terence Bayler , Carmen Gómez , Anthony Langdon , Anne Cunningham , Marguerite Young
- Runtime: 70 min
- Awards: N/A
- AKA: Dr. Watson and the Darkwater Hall Mystery (United Kingdom) , Dr. Watson and the Darkwater Hall Mystery
- Plot: While Holmes is away recuperating, Watson is left to help a damsel in distress.
- IMDB:tt2256689
Dr. Watson and the Darkwater Hall Mystery Cast · · · ALL
James Cellan Jones
Director
Edward Fox
Dr. Watson
Elaine Taylor
Emily
Christopher Cazenove
Sir Harry
Jeremy Clyde
Miles
John Westbrook
Bradshaw
Terence Bayler
Carlos
Anthony Langdon
Black Paul
Ande Cunningham
Black Paul's Woman
Derek Deadman
Haddocks