Graviton Cemetery-the biggest, oldest, most haunted graveyard in the world. And Requiem 4 is here to clean things up. In a dystopian, war-torn future where a godless global network reprograms the masses for compliance, the Requiem units are a dying breed. Manned by sciocists-scientific exorcists-and armed with state-of-the-art technology, the units sweep cemeteries of 'latent soul energy.' However, there's a lot more than just ghosts in Graviton...