A film professor becomes obsessed with a phrase said by an old film director and investigates its origin, not realizing that perhaps he is making a film himself. American director Raoul Walsh once said, "There are not thirty-six ways of showing a man getting on a horse". A statement of principle that establishes the form of classical language. An Argentine film professor begins an investigation into the origin of this phrase, not realizing that his obsession will lead him to get into a maze of filmmaking made up of detectives lost in the wild west.