After a brief analysis of the setting as an element of complexity in the therapeutic system, the authors intend to demonstrate - through the reading of a clinical case - the potentiality and risks of introducing a form of joint-disjoint integrated setting. The hypothesis that is at the background of the contribution is that, in some cases, the introduction of this setting can allow to work on multiple levels simultaneously, avoiding the risk of potentially correct interventions under a formal point of view, but that might be against-systemic in a single context. Specific "joints of loyalty" may represent a constraint to the definition of a unique setting, both at a family and individual level, which could make it difficult to take into account the complexity of the levels involved. But precisely the recognition of this constraint can become an opportunity to define an integrated setting, becoming a resource to start a therapeutic process that can meet the complexity of the developmental needs of individuals and of the system and encourage the dialectic between belonging and identification.
Keywords: Setting, joint-disjoint, loyalty, adolescence, junction.