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Having been appointed to the Bench, wealthy and ambitious British lawyer Harvey Laurence (Donald Pleasence) is being fitted for his judicial robes when he finds a strange key in his pocket. As it turns out, this key will unlock a unsavory secret in Laurence's past, in which he had allowed an innocent man to go to the gallows for the murder of a woman that the lawyer knew to be still alive. A shattering denoument in London's Hyde Park caps this episode, one of several One Step Beyond entries filmed in England.