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Drawing on the Chicago School of sociology and the ethnography of deviant careers, this study presents the ethnobiography of a drug addict and heroin dealer from the zone. Through permanent contact with the street and the punks living there, the article probes the mysteries of this dealing space in the company of one of its specialists, who reveals its day-to-day life, its economy and its rules. Underlying the descriptions of the drug-dealing spaces is the assumption that the criminal activities there are a reflection of neoliberalism. This life-course in the zone may therefore be considered as the existential paradigm of a street capitalism that reduces competitive relationships to their crudest, most violent expressions. The biographical space thus constitutes a prism for observing the space of the deal in its personified state.