The understanding of the clinical and therapeutical approach of severe behaviour disorders in terms of rape and murder with some adolescents is here studied from the point of view of projective techniques. The specificity of T.A.T. protocoles shows the temporary efficiency of splitting at work with such adolescents but also its failure when the representation of object‑loss is appealed to, hence summoning up a huge abandonment and annihilation anxiety which will entail drive defusion. The tonality of an internal lethal void is hence unfolded within a narcissism constantly threatened by being broken down into pieces.