In 1889, most of the city of Seattle burnt to the ground. The residents rebounded by using the ruin remnants to create the foundation for the new and improved city. In 1965, Bill Spediel struck a deal with the new metropolis to turn a profit on the tragedy from almost a century earlier. Thus, The Underground was born, immediately spawning talk of ghosts. In recent years, the myths morphed into stories of actual people living among the trash and filth that had built up beneath the city. These mythical people had become mockingly referred to as groundlings by the locals. As the city is now held in the grips of a serial killer, Oz Seidon can't seem to focus on anything other than the groundlings. Having never put much stock into them before, a recent rash of sightings has piqued his curiosity. Oz intends to disprove the legend, using the research as an excuse to focus on something other than death, that is, until he stumbles upon one and learns how close to this story he really is.