When Lou Bloom, desperate for work, muscles into the world of L.A. crime journalism, he blurs the line between observer and participant to become the star of his own story. Aiding him in his effort is Nina, a TV-news veteran.
A runaway orphan, young Sonora, persists in a menial job mucking stables in Doc Carver\'s travelling stunt show. Her great wish is to become a death-defying \"diving girl,\" but Doc refuses her pleas. Undaunted, Sonora\'s gutsy resolve finally convinces him to give her a break. On the brink of stardom, however, a cruel twist of fate threatens to destroy her dream.