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Sherlock Holmes (Jeremy Brett) accepts a case involving a sinister Austrian baron and the man's bizarre fiancée. He does this on behalf of a man whose position in the British government is so high that he dare not use his own name in engaging Holmes' services. The great detective discreetly saves the empire from ruin and brings the villains to heel. "The Illustrious Client" was one of the more in-depth entries in Britain's Casebook of Sherlock Holmes. Filmed in 1990, this 50-minute drama made the American TV and videocassette rounds two years later.