This documentary aims to show the importance of community networking when addressing social realities such as the sale and use of intravenous drugs in neighborhoods and public spaces. The experiences and opinions of various social actors involved in this case in a neighborhood (Sant Josep Obrer) Reus (Catalonia, Spain) and the action of an association of drug users (ARSU) from the perspective of harm reduction in this scene, shows that the participation of drug users themselves is essential to ensure coexistence and promote health and attitudes of respect in the community. In my back yard also wants to be a tool to promote training and non-conflicting strategies to implement services providing attention to drug addiction, that need the consensus of the various actors and stakeholders involved in the same area. Drug users are not the problem but instead are part of the solution.