GRM. Brainfuck (with GRM pronounced as Grime) is a dystopian novel by the German-Swiss author Sibylle Berg, published in April 2019 by Kiepenheuer & Witsch. In 2019 it won the Swiss Book Prize. Plot The novel is set in the near future in the English town of Rochdale and describes the lives of four teenage friends. They belong to the so-called lower class, and their everyday life is characterised by poverty, unkindness and brutality. After all four teenagers lose their original family through various strokes of fate, they move to London, with the aim of taking revenge on people living in London who have had a negative impact on their lives. Here they live outside the city and society in abandoned factories, where they come into contact with the local hacker scene. They are able to locate and observe the targets of their revenge, but these all either die or lead an unhappy existence without any intervention from the main characters. The author also addresses social developments in the course of the novel. For example, due to high unemployment, the unconditional basic income is introduced, but at the same time it is linked to a morally normative, technological state surveillance system. The state also restricts the rights of women and minorities. The four protagonists escape this surveillance through their illegal way of life. Only after a change of government following a political election do they integrate into society, which, according to the end of the book, leads to the isolation of the four participants from each other. Style The style of the novel is partly influenced by rap. The word GRM is a disemvoweling of the word grime, referring to the rap style. The narrator focuses on one character at a time and then switches to portraying the next person by mentioning their name. This person is introduced, especially if he or she is new to the plot, through a kind of profile in the form of catchwords, as in a wanted poster. In addition to the four main characters of the novel, people who have a (mostly negative) influence on the protagonists are also described in this way. Among others, this includes Thome, who belongs to the upper class. Characters The following characters play a crucial role in the novel: Don has a brother with whom she lives along with her black, single mother in the first part of