en Cuevana 3. In 1964, the discovery of secret Nazi documents in the bottom of a lake in the Šumava hits the press worldwide. Years later, it is revealed that the sensational event was orchestrated by the communist regime in a campaign against West Germany, code-named Neptune. Revisiting recent political past of the Cold War in a noir pastiche, this docufiction contributes to the process of myth-making as a necessary construction of our perception of the history.