Rainfox (1984)

Crime melodrama played out in horse racing circles. Rainfox is a red gallop horse, and it is trained by the Swedish trainer John Ericson. He is wrongfully accused of doping Rainfox and being fired. Of course, he thinks this is completely unfair, so he starts investigating the case himself. This rolls up a large number of sinister and inflamed conditions among the money and backers of the upper class.