our research aims to study the subjectivity production into catholic institutions and environments dedicated to their members' religious formation. in this article, we had analyzed a report from an ex-focolare member as a case study. we focused on describing his formative path, integration and latter desertion from such group. basically by subtraction and by imaginary addition, the technology settled by this kind of integrative religious movement can produce a serialized subjectivity of deep fanatic shade, with no space for individuality, creative initiative, nor singularity. we have concluded with some psychosocial notes related to psychoanalysis understanding onto religious fanaticism.