Naomi Armitage and Ross Sylibus have changed their names and live with their daughter Yoko as a happy and normal family on Mars — until an android riot breaks out at an anti-matter plant on Earth.
Ross Sylibus is assigned to a police unit on a Martian colony, to find that women are being murdered by a psychotic named D'anclaude. He is assigned a very unorthodox partner named Naomi Armitage, who seems to have links to the victims. To stir things up more, every victim is found to be an illegally made third-generation android.
In the year 2046, a cop and his female android partner called Armitage, part of the latest android line known as "class III" models that look, act and feel human, investigate illegal manufacture of class III androids on colonized Mars.