This study challenges the common view that extrajudicial executions in Republican Spain in July 1936 were the work of criminal or anarchist 'uncontrollables'. 'This excellent book carefully examines Madrid's 'Red Terror,' that is, the deaths of thousands of rightists in a city controlled by Republican forces during the Spanish Civil War. It provides new information and a convincing interpretation concerning many of the Terror's most important issues - the Soviet role, the Paracuellos massacres, Republican government complicity, participation of various forces of the left, and the influence of so-called uncontrollables. In an innovative manner, it demonstrates the cultural influence of Hollywood gangster films on the assassins, emphasizes the importance of the radio, and shows - in contrast to much of the literature - that the relationship between Nationalist and Republican atrocities was not direct, but rather was indirect. This is probably the best study of terror in a major city during the Spanish conflict.' Michael Seidman, University of North Carolina, Wilmington