The present dissertation focuses on the scenic creation Hoje Não Saio Daqui – a theatrical play that took place in Rio de Janeiro, which was the result of the artistic gathering among Cia Marginal, invited Angolan actors and actresses living in Maré Complex and the playwright Jô Bilac – to investigate in which way the performative and relational dimension of its dramaturgy and its investment in the so-called writings of the self provide a twofold approach to the issue of contemporary borders. On the one hand, the stories narrated by the Angolan migrants make explicit the material and subjective borders faced by them both in their crossings from Africa to Brazil and those that their bodies suffer in the circulation within the Brazilian territory – technologies that operate through the control of displacements and speeds, of racialization and borderization of bodies. On the other hand, the appeal for difference and the need for separation manifest in the autobiographical disposition of the dramaturgy, which involves the performers’ own positions and claims, paradoxically revises the boundaries thought of as its primordial hypothesis, and activates the possibility of a regime de bordas (KIFFER) and a new Cosmopolis (AGIER). Finally, it examines how the non-obliteration of the figure of the external and non-participant playwright in a scenic writing that invests in personal dramaturgies and in the presence of speaking bodies produces materialities that rethink a politics of the common.