Fast Company(1953)

When Carol Maldon inherits her family's stable and a horse with strong racing potential, she begins working with suave trainer Rick Grayton. Intent on owning the horse himself, Rick hinders its true abilities so that he can buy the steed on the cheap. Rick's plan is complicated, however, when he realizes that he's falling for Carol. Making matters worse, the jealous Mercedes Bellway uncovers Rick's deception and uses the information to cause trouble.