Still mourning the death of his wife, private investigator Mark Novak accepts a case that may be his undoing. On the same day his wife died, the body of a teenage girl was pulled from the extensive and perilous cave system beneath Southern Indiana. Now the man who rescued the girl, who was believed to be her killer, begs Novak uncover what really happened. The only problem is in small-town Midwest, cold cases stay cold. Garrison is much like any place in America, proud and fortified against outsiders. So Mark is forced to delve beneath the town's secrets, and more frighteningly match wits with the man who knows the caverns better than anyone.