When Tom Knowles returns to the Massachusetts town where he grew up to help sell the family house and move his widowed mother, he finds his high school class is having its thirtieth reunion. Without much interest, he attends, and ?finds his boyhood friend "Brain" McLean still living up to his nickname; Brain has designed a holographic show made from old films of the pregraduation dance they had. The show is cut short by a fierce electric storm, but...