Jane Seymour makes a six-course meal of her starring role as a magazine editor in Obsessed With a Married Woman--indeed, her performance is the only tangible reason for sitting through this artistically bankrupt TV movie. The story contrives to have Seymour, happily married and the mother of a wise-lipped son, fall into the sack with her star reporter Tim Matheson. It seems that Jane has assigned Matheson to do a series of articles on mistresses. He does his homework so well that Jane takes him on as her own "male mistress."