In Pleasure Model, the first book in the Netherworld trilogy, down-and out police detective Rook gets a big break when he's assigned to a bizarre and vicious murder case. The clues are colder than the corpse and the case looks like it'll remain unsolved—until an eyewitness is discovered. But the witness is a Pleasure Model, an illegal gene-grown human. Plesur's only purpose is to provide satisfaction to her owner—in any way. When the murderer targets Plesur in order to eliminate the one witness, Rook takes her into hiding to protect her. Thus begins a descent into the dark world of exotic pleasure mods and their illicit buyers and manufacturers. Rook frantically looks for clues, struggling to stay one stop ahead of those looking to kill them both. But is Rook falling under Plesur's spell....?
Now after being dragged through hell and back, Rook is on the run with Plesur, a Pleasure Model who is the one eyewitness to the murder. Plesur carries a secret in her brain that terrifies the powers-that-be. A secret that they will do anything to destroy—even bring in a Tactical Robotic Regiment to track Rook and Plesur down and annihilate them.
The only choice the two have is to locate the coordinates that were planted in the pleasure mod's head to the isolated mountain ridge where it all began. Deep underground, in a warren of machine halls and ice caves, something so horrific is happening that just knowing three code words is enough to get you killed: Operation Taste Imperative.
Rook and Plesur have no way back and no way out. If they want to survive and have any kind of life together, they must uncover the terrifying secret that lies deep inside the mountain.