In this single case study we present a female patient diagnosed with a narcissistic personality disorder and a borderline organization. The interplay between attachment and psychoanalytic perspective will be focused. The analyst describes his impressions of the initial interview with the patient and essential steps during treatment. The patient was interviewed with the Adult Attachment Interview and classified as “insecure preoccupied” with an “unresolved state of mind” concerning loss and abuse. The analyst was asked to comment the AAI's essential characteristics of this patient. We discuss converging and diverging aspects of clinical and attachment interpretation in this single case.