The Manhattan Hunt Club.

Falsely convicted of a brutal crime, college student Jeff Converse sees his future vanishing before his eyes. But someone has other plans for Jeff, in a far deadlier place than any penitentiary. Jeff finds himself beneath the teeming streets of Manhattan, in a hidden landscape of twisting tunnels and forgotten subterranean chambers. Here, an invisible population of the homeless, the desperate, and the mad has carved out its own shadow society. But they are not alone.