Mexico City

Mitch is headed for Oaxaca with her brother Sam. During their one-day layover in Mexico City, Sam goes out for a night on the town and doesn't return. Mitch seeks help at the American embassy, and starts her own search with the aid of Pedro, a cabbie. She finds the cantina where Sam was drinking, and stands up to a gang leader to learn some of what happened to Sam. He gives her Sam's camera, and the photos on the last roll of film become the object of a hunt by some very determined criminals. (imdb)