Monkeewrench is a series of thriller novels by American author P.J. and Traci Lambrecht, collectively known as P.J. Tracy. The series is focused on a software company that produces a game where the murderer is always caught. Unfortunately, this becomes an inspiration to a real-life killer who cannot be programmed.


P.J. Tracy is the pen name of the mother-daughter collaborative writing team of Patricia and Traci Lambrecht. Patricia passed away at age 70 in 2016, while Traci lives in rural Minnesota and continues to write as P.J. Tracy. Their books are all apart of the Monkeewrench series, which is a series of thriller novels.