It’s the impossible dream of every trader and dealer on Wall Street—an accurate means to predict the ups and downs of the stock market. The Reiner sisters have made that dream a reality in the form of a computer program they call Goldring. The sisters have kept Goldring their little secret, even when a magazine story by financial reporter Karen Glick showcases their sudden wealth. Everything was working so well, but now one of the sisters has been found murdered, Goldring is missing—and Karen Glick has a hit man on her trail.