"Esther Happy" is one of the four parts of the serial novel, "The Splendors and Miseries of Courtesans (also known as, "A Harlot High and Low,") a novel by French novelist Honoré de Balzac. Lucien de Rubempré and Carlos Herrera (Vautrin) have made a pact, in which Lucien will arrive at success in Paris if he agrees to follow Vautrin's instructions blindly. Esther van Gobseck throws a wrench into Vautrin's best-laid plans, however, because Lucien falls in love with her and she with him. One night, however, the incredibly rich banker Baron de Nucingen spots Esther and falls deeply in love with her. When Vautrin realizes that Nucingen's obsession is with Esther, he decides to use her power as a tool to help advance Lucien by extrapolating the maximum amount of money from the Baron as possible. Something that will result in a series of tragic results...