Sherlock Holmes in the 22nd Century

The Adventure of the Creeping Man (2x6)

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Inspector Lestrade learns Alice Murphy is engaged to their old teacher, Prof. Jacob Presbury. The professor is moody and forgetful. His daughter is jealous. Family friend Trevor is over-protective. Meanwhile Holmes investigates three monkeys stolen from the Primate Shelter, stolen as it turns out by Trevor who wants Alice for himself and so turned Presbury into an apeman.