Clyde Shelton is an upstanding family man whose wife and daughter are brutally murdered during a home invasion. When the killers are caught, Nick Rice, a hotshot young Philadelphia prosecutor, is assigned to the case. Over his objections, Nick is forced by his boss to offer one of the suspects a light sentence in exchange for testifying against his accomplice. Fast forward ten years. The man who got away with murder is found dead and Clyde Shelton coolly admits his guilt. Then he issues a warning to Nick: Either fix the flawed justice system that failed his family, or key players in the trial will die. Soon Shelton follows through on his threats, orchestrating from his jail cell a string of spectacularly diabolical assassinations that can be neither predicted nor prevented. Philadelphia is gripped with fear as Shelton's high-profile targets are slain one after another and the authorities are powerless to halt his reign of terror. Only Nick can stop the killing, and to do so he must outwit this brilliant sociopath in a harrowing contest of wills in which even the smallest misstep means death. With his own family now in Shelton's crosshairs, Nick finds himself in a desperate race against time facing a deadly adversary who seems always to be one step ahead.

Special Agent Strahm is dead, and Detective Hoffman has emerged as the unchallenged successor to Jigsaw's legacy. However, when the FBI draws closer to Hoffman, he is forced to set a game into motion, and Jigsaw's grand scheme is finally understood

The time is the too-near future. Powered and enabled by the invention known as the Great Machine, the world's machines have turned on mankind and sparked social unrest, decimating the human population before being largely shut down. But as our world fell to pieces, a mission began to salvage the legacy of civilization; a group of small creations was given the spark of life by a scientist in the final days of humanity, and they continue to exist post-apocalypse. With their group so few, these "stitchpunk" creations must summon individual strengths well beyond their own proportions in order to outwit and fight against still-functioning machines, one of which is a marauding mechanized beast.