Marlene owns a saloon in Puggville, a small town in Texas that has been mostly deserted until recently. She inherited The White Mule from her parents, who died in a tragic horse carriage accident. Now that the railroad is finished, all sorts of new folks have been showing up in her bar along with her few regulars. Business has been booming, especially since she was given a large sum of money from a young entrepreneur to expand her saloon. She is not quite sure why this man chose to help her expand but she is becoming suspicious of him, especially since he started a gambling ring in her back room. Since the construction of the railroad, the town is growing rapidly and its citizens are worried it will be taken over by its many new, often morally dubious, members.