The Master Blackmailer is a 1992 British television crime drama mystery film. It features Jeremy Brett, Edward Hardwicke, Robert Hardy, Norma West, Gwen Ffrangcon Davies, Colin Jeavons, and Hans Meyer.
An episode from 'The Case-Book of Sherlock Holmes'. For years, a blackmailer has been preying on the weaknesses of others throughout London. When Holmes hears of the utter misery this mystery man is creating, he adopts a campaign to thwart his evil scheming.