Mason “Mace” Reid lives on the outskirts of Chicago and specializes in human remains detection—that is, he trains dogs to hunt for dead bodies. He calls his pack of cadaver dogs The Finders, and his prize pupil is a golden retriever named Vira.

When Mace Reid and Vira are called in to search Washington Park at three o'clock in the morning, what they find has them running for their very lives. The trail of murder and mayhem Mace and CPD Officer Kippy Gimm have been following leads them to uncover treachery and corruption at the highest level, and their discoveries do not bode well for them . . . nor for the Windy City itself.