The election of Salvador Allende and the Unidad Popular (Popular Unity) in 1970 unleashed a radical and original revolutionary process, discernible not only in the depth of its redistributive measures and the expectations it generated, but also in the ferocity with which those who identified with the counter-revolutionary ideal responded to that project. The counter-revolution, initially confined to the conservative and reactionary sectors, in a matter of months became an immense mass mobilisation that would end up paving the way for the military coup. This article analyses that counter-revolutionary process, exploring its historic roots, the main actors involved and the innovations in political practices it developed at the time. The ‘counter-revolutionary bloc’ was formed by a diverse array of political and social actors – some of whom did not have previous experience in political mobilisations – who based their actions on the adoption and socialisation of a long-standing anti-Communist script, through which they could make sense of the period’s changing reality. That script – based on decades of taking in events from other parts of the world, elaborations and accusations against all those who identified as Communists – aimed to reduce the originality of the Unidad Popular’s political project to a remake of classic socialist experiences in Chilean territory and processed in a dystopian key. The counter-revolution’s power would be projected into the military dictatorship that began in 1973, when it became a sort of official state ideology, and it would become a foundational experience for Chilean conservative sectors with reverberations even in in the present.