Jaime Giménez Arbe, named by police as “The Loner”, is not just a bank expropriator. Armed with a political consciousness and with an uncommon cultural and existential background, he describes the reasons that prompted him to become an "expropriator" in constant struggle against capitalism. In this autobiography, written by hand, he also tells its relations with the European anarchist movement and the Corsican nationalism. At the same time, he disassembles the judicial farce which sentenced him to 40 years imprisonment for the murder of two guards. He writes from a Portuguese prison where he waits his next extradition to a maximum security prison located in the heart of his main enemy: the Spanish State.