Alan feels the pressures of his job and is introduced to a doctor at his club. When he becomes addicted, he is blackmailed by his peddlers to represent their friends in court. Jimmy, now off the smack and a taxi driver, hears of these goings-on. When he discovers that his passenger is the leader of the dope ring, he resolves to aid the war on narcotics by crashing the vehicle head-on into an oncoming train, killing them both. Alan gets treated for his addiction and begins to fight the pushers in court, all the while pushing for stronger laws against addictive substances.