Two women who look enough alike to be twins--and so different in personality that they might be from different planets--meet by chance in Chicago?s O?Hare Airport during the snowstorm of the century. Each is faced with a task she dreads. While on terminal layover, they agree to trade places for a week. Con artist Samantha Smith will fly to San Francisco to deal with a "dying" grandmother while Jayne Roberts goes to Los Angeles to sign Sam's divorce papers.