Into this maelstrom came a working class, Brooklyn-born, Italian cop with long hair, a beard, and a taste for opera and ballet. Frank Serpico was a man who couldn't be silenced -- or bought -- and he refused to go along with the system. He had sworn an oath to uphold the law, even if the perpetrators happened to be other cops. For this unwavering commitment to justice, Serpico nearly paid with his life.