The end of the TV series Gomorrah -a brutal portrait of the Neapolitan mafia based on the novel by Roberto Saviano- invites us to reflect on some urban and architectural aspects of the city of Naples, the true main character of the show. We go back to the urban origins of the Napoli suburbs and how the mafia capos imposed their socio-economic control. Gomorrah establishes a dual relationship of documentation and dramatization of the architectural heritage of the city. In the series we see reflected the importance of the relationship between domestic and urban spaces and the constant dispute between sin and redemption that governs the fate of Naples.