In the mid-1970s Argentina experienced a deadly struggle between two well-organized urban guerrilla movements and a highly repressive Argentine military counterinsurgency effort. No holds were barred in the military campaign to root out not only the guerrilla leadership but all considered sympathetic to the insurgents, including trade union organizers, teachers, lawyers, journalists and psychiatrists. The author uses interviews and clandestine documents to illuminate a dark chapter in Argentina's history.