Ride the Pink Horse

Ride the Pink Horse is a 1947 American crime film noir produced by Universal Studios. It was directed by the actor Robert Montgomery from a screenplay by Ben Hecht, which was based on a novel of the same name by Dorothy B. Hughes. The drama features Robert Montgomery, Wanda Hendrix, Andrea King, Thomas Gomez, among others. Gomez was nominated for a Best Supporting Actor Oscar for his performance.

Gagin Robert Montgomery arrives on a bus in San Pablo, a small rural town in New Mexico during its annual fiesta. He plans to confront and blackmail money from a mobster named Frank Hugo Fred Clark as retribution for the death of his best friend Shorty.Gagin bursts in uninvited to Hugos hotel room, where Marjorie Lundeen Andrea King, a sophisticated female acquaintance of Hugos, uses her wiles trying to learn more about him. FBI agent Bill Retz Art Smith then approaches Gagin and asks him to turn over any incriminating information he may have on Hugo so the federal government can prosecute. Gagin denies having any information and lies that hes in town for the fiesta. ........

Source: Wikipedia