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. The campaign astonishes Dr. Watson by its strangeness and finds Holmes falling in love.
Gwen Ffrangcon Davies
The dowager

Colin Jeavons
Inspector Lestrade

Serena Gordon
Lady Eva Blackwell

Rosalie Williams
Mrs Hudson