While avoiding the pretence of producing an exhaustive reading of such a complex object as Lars Von Trier's Dogville, this article selectively uses the film to explore the process of the emergence of a new legality and a new set of legal relationships within a community. Two superimposed layers of meaning, the biblical and the mythic, are considered and their interaction with two different reasons, the symbolic and the economic, is suggested and explored. The categories of 'critical being', by Fitzpatrick and Tuitt, and homo sacer, by Agamben, are taken as useful tools to understand such interaction and the connected dynamics of inclusion and exclusion. Throughout the article, it is argued that the perspective of the sacrifice, as framed especially by Girard, is useful to highlight an anthropological mechanism that can be retrieved in Dogville.