The film is a story of Petra who was cursed into a horse because of his bad behavior. He will only return to his normal state if he treats people well. The film is based on Pablo Gomez's work. The first film entitled Petrang Kabayo at ang Pilyang Kuting was produced by Regal Films while the sequel Petrang Kabayo 2 is under Viva Films.
Peter is a boy who is always maltreated by his father because of his homosexuality. He decided to runaway and found out that he is a horseback owner. But, he becomes a mean horse owner. Becauseof that, he was given a curse that transformed him to horse. When he gets angry, said something or do anything bad to others, he will be transformed into a horse.