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Wealthy Walter Pelham (Tom Ewell) finds out that someone is going around impersonating him. Hoping to foil his "double," Pelham goes to great and strenuous lengths, changing his own appearance, his personal habits and quirks, and even his handwriting. Unfortunately, the impostor always seems to be one step ahead of Mr. Pelham -- and it looks as the though the phony will be successful in completely taking over the life of the genuine article. "The Case of Mr. Pelham" is one of a handful of Alfred Hitchcock Presents installments directed by Hitchcock himself.