There were 18,000 murders in the United States in 1972. More Americans were murdered in three years than were killed in combat in Vietnam in ten years. A remarkable film report by NBC examines the reasons for these terrifying statistics. It examines how the seeds of violence germinate and grow in the poor areas-the ghettos; why it is that murder is spreading to the middle-class suburbs; why the murder rate is nearly twenty-five times greater than in this country. Jim Hartz reports from Denver, Colorado, a city the size of Manchester, on the homicide division -the murder squad.