The author illustrates the clinic case of Enza, a patient with a Dissociative Disorder. In the first part, the case is based on her life story, on the disorder description, on the reasons of the decompensation, on the mechanisms of maintenance and on the patient’s vulnerability. In the second part, the cognitive-evolutionary psychotherapic treatment as yet effected is described in its specific phases. Later, the problematic moment and the difficulties of the case are described.
Keywords: Dissociation; Depersonalization; Identity; Complex Post-Traumatic Stress Disorder; Trauma.