How does hatred arise that does not shy away from murder?

The first part of this comprehensive film trilogy illuminates the history and background of the NSU (National Socialist Underground). The focus is on the development and radicalization of the right-wing scene since the early 1990s, the increasing propensity for violence in the right-wing milieu and the emergence of the terror cell. How did three young people with middle-class backgrounds, who in 1989 lived in a world in which everything and nothing seemed possible for their generation, decide to join the right-wing terrorist underground?