What is "monkeewrench"

Monkeewrench (released later in the United Kingdom as Want to Play?), is the first novel by author team P. J. Tracy. It revolves around the search for a copycat killer, who is recreating murders found in a new computer game. It also seems that the killer is linked to the computer programmers who made the game.

This book was featured on the UK Richard & Judy show in 2005.