In Lightning Strikes Twice, Ruth Roman stars a Shelley Carnes, a stage actress who champions the cause of Richard Trevelyan (Richard Todd), whom she believes has been falsely accused of murdering his wife. Freed on a technicality, Trevelyan is nonetheless adjudged guilty in the court of public opinion. Carnes stands by her man, eventually marrying him. On the wedding night, however, it appears that Carnes has made a horrible mistake. It won't be long before she, too, will fall into the clutches of a killer--but is it Trevelyan? Based on a novel by Margaret Echard, Lightning Strikes Twice is given novelty value through its unique setting: instead of taking place in the standard Big City, the events transpire in the wide-open spaces of Texas. Of the supporting actors, Mercedes McCambridge stands out as a woman scorned, while Zachary Scott does his usual as a lazy playboy.