Destructive behavior is one of the most challenging aspects when treating severe borderline patients because both the therapist and the psychotherapeutic method are called into question. Drawing on three in-depth psychoanalytic sessions of a severe borderline patient, the authors present and discuss the communicative potential of destructive behavior in the transference relationship during treatment. A step-by-step analysis and the working through process of the therapist's countertransference led the authors to recognize several complex dynamics of the patient's pathological organization and to the containment and first representation of unsymbolized early anxieties generated during the original encounter with the object.