When a series of grisly murders occur after a Monkeewrench Software partner thwarts an assassination attempt on a retired FBI agent, Minneapolis homicide detectives Leo Magozzi and Gino Rolseth struggle to link the three crimes and learn of similar murders around the United States.

At 1:15 a.m, a Minnesota political fixer answers his doorbell. The next thing he knows, he's waking up on the floor of a moving car, lying on a plastic sheet, his body wet with blood. When the car stops, a voice says, "Hey, I think he's breathing," and another voice says, "Yeah? Give me the bat." And that's the last thing he ever knows. Lucas Davenport is investigating another case when the trail leads to the man's disappearance, then--very troublingly--to...

With the help of local law enforcement and the FBI, the Monkeewrench crew tracks a serial killer using savvy computer technology.

"As the dreary, bitter weather of late fall descends on Minneapolis, Detective Nikki Liska is restless, already bored with her new assignment to the cold case squad. She misses the rush of pulling an all-nighter and the sense of urgency of hunting a desperate killer on the loose. Most of all she misses her old partner, Sam Kovac. Kovac is having an even harder time adjusting to Liska's absence, saddled with a green new partner younger than most of...

"The Monkeewrench crew returns to face the city of Minneapolis's worst nightmare--a rampant serial killer on the loose--in the electrifying new thriller. When Minneapolis homicide detectives Leo Magozzi and Gino Rolseth are called to a crime scene in a heavily wooded city park, everything about the setting is all too familiar. And when they discover a playing card on the victim's body, their worst fears are confirmed--there's a serial killer operating...

Lieutenant Lucas Davenport is determined to track down a diabolically clever serial killer who leads a double life, carefully picks out his female victims, and taunts the police with notes signed "Maddog."