Psychodrama projects actual processes, situations, roles, and conflicts into an experimental milieu, the therapeutic theatre a milieu which can be as broad as the wings of imagination can make it, yet inclusive of every particle of our real worlds. Applied to the marriage problem, it opens up new vistas for research and treatment. By far the most conspicuous marriage conflict brought to the attention of the psychodrarnatic consultant is the triangle, or better, the psychological triangle of husband, wife, and a third party, man or woman. The training of an auxiliary ego, especially in marriage problems, is of great importance. The auxiliary ego must learn to detach himself entirely from anything in his own private life which might bias him toward one or the other of the marriage partners. Elaborate spontaneity training may be necessary before his own private conflicts cease to affect his function as an auxiliary in marriage problems.