Because the play only exists in part (since the finished play was destroyed in the Spanish Civil War), it's difficult to get a hold of what theme is truly at the center of the play, but something does come through. The story is an expose of sexual fascination and the capacity of sexuality to dismantle people and unfashion social constructions.
Look at the wildly provocative and in some cases inappropriate sexual themes in the work: pedophilia, bestiality, to name just a couple, and also the consistent thread of men questioning their heterosexuality. The height of sexual drama involves a homosexual encounter, in fact, in a scene that is undeniably messianic—there is some serious attempt to reconcile homosexuality to the culture of the Western world.
As a relic of the Spanish Civil War, this text presents another layer of meaning, because the play indicates the type of art that the Spanish government would not tolerate under Franco's regime.