What is counter-finality? Who, or what, is the agent of counter-finality? In the Critique of Dialectical Reason, Sartre employs a complicated and multivalent notion of counter-finality, the reversal of the finality intended by an agent in different contexts and at different levels of complexity. Sartre's concept of counter-finality is read here as an attempt to rethink and broaden the traditional Marxist notion of commodity fetishism as a tragic dialectic of human history whose final act has yet to play out. The article analyses and explicates Sartre's complex concept of counter-finality, focusing on material antipraxis.