Stake Night is the story of a single year in the glamorous and competitive world of show horses, where the rewards are large and so are the lengths to which people will go to win. For the owners, it is about wielding power through money in their quest to proudly hold the prestigious World Championship trophy. For the riders, it is about demonstrating technical skill and nerve by out-riding their competitors and maneuvering their horse in the frenetic ring so the judges notice it. For the trainers, it is about finding the key that makes your horse out-perform others that might actually be more talented and achieving the professional recognition that leads to new clients and financial security. For everyone, it is about settling scores and finding a way to win the championship.
The central character is Jennifer, a young, relatively unknown trainer. She can't believe her luck when a rich client brings her the reigning world champion horse and tells Jennifer to prepare the horse for her timid daughter to ride. Jennifer quickly learns that this horse and rider are a dangerous and doomed combination, and she must move carefully to find an alternative that keeps her important client from leaving the barn and ruining Jennifer's chances to finally join the ranks of the most well-known and respected trainers.