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Based on a true story (it says here), He's Not Your Son is another variation on the old "switched at birth" plot device. Donna Mills and Ken Howard play Kathy and Michael Saunders, who are forced to face the possibility that their new baby may not be their new baby. It's a possibility that the hospital made a mistake, and that the Saunders infant was switched with the newborn son of Holly and Ted Barnes (Ann Dusenberry, John James). The ramifications of this error result in emotional disaster for both couples. Twin babies Drew and Preston James play the child in question. Filmed on location in Dallas, the made-for-TV He's Not Your Son debuted October 3, 1984.