The distant future. A giant interplanetary corporation has built the Persephone mining station on the surface of Pluto. Over time, the station turned into a huge multi-level city, the upper floors of which are occupied by rich and idle loafers, and the lower floors are inhabited by ordinary workers. In the most difficult conditions they mine the rare mineral “Tears of Pluto”.... The catastrophe broke out suddenly - the corpses of brutally murdered miners were found. Having lost a close friend in this massacre, Robert Irons accidentally finds out who is behind these murders. From this moment on, Robert becomes a game for those who are ready to do anything for the sake of profit. But sometimes even the game turns into a hunter...