This article aims at providing a critical review of the main studies about Mafia in a theoretical psychological and socio-anthropological framework, and investigating the perception of the phenomenon in relation to moral disengagement and values orientation in two groups of Sicilian teenagers, living in contexts with different Mafia density. Today Mafia is represented as a socio-psychological phenomenon, which has managed to make culture, community, family, and individuals coincide; it is founded on an individualistic social conception according to which violence is (...) the strongest form of self-achievement. (shrink)