1. A method of treating a non-plasmaproliferative disease associated with target cells expressing CD138, comprising: administering to a needy individual an effective amount of an immunoconjugate containing at least one targeting antibody, the targets of which are cells expressing CD138, and at least one effector molecule, wherein said targeting antibody is operably linked to said effector molecule to form said immunoconjugate, wherein said targeting an the body contains a heavy chain and a light chain, where the heavy chain contains CDR1 of the variable region of the heavy chain containing amino acid residues 31-35 of the sequence SEQ ID NO: 1, CDR2 of the variable region of the heavy chain containing amino acid residues 51-68 of the sequence SEQ ID NO: 1, and CDR3 of the variable region of the heavy chain containing amino acid residues 99-111 of the sequence SEQ ID NO: 1, where the light chain contains CDR1 of the variable region of the light chain containing amino acid residues 24-34 of the sequence SEQ ID NO: 2, CDR2 of the variable region of the light chain and containing 50-56 amino acid residues of the sequence SEQ ID NO: 2, and CDR3 light chain variable region comprising the amino acid sequence of residues 89-97 SEQ ID NO: 2.2. The method of claim 1, wherein said CD138 is expressed on said target cells and on non-target cells at comparable levels, or wherein said individual CD138 is expressed on said target cells at levels that are lower than those in the case of said non-target cells expressing CD138.3. The method of claim 2, wherein said non1. Способ лечения не являющегося плазмапролиферативным заболевания, связанного с клетками-мишенями, экспрессирующими CD138, предусматривающий:введение нуждающемуся индивиду эффективного количества иммуноконъюгата, содержащегопо крайней мере одно нацеливающее антитело, мишенями которого являются клетки, экспрессирующие CD138, и по крайней мере одну эффекторную молекулу,причем указанное нацеливающее антитело функционально