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Novelist and playwright Noël Coward wrote the play "Blithe Spirit." The witty comedy follows the antics of a mischievous ghost named Elvira who disrupts the life of her widowed husband, Charles Condomine, and his new wife, Ruth. Coward's clever dialogue and exploration of themes such as love, loss, and the afterlife have made "Blithe Spirit" a beloved classic of British theater.