When Det. Kennex and Dorian investigate the simultaneous and sudden deaths of two genetically-enhanced - or "chrome" - children, a fatal dose of the perfect designer drug appears to be the cause. As the investigation unfolds and a recent drowning victim is mysteriously connected, the case takes an unexpected turn. Meanwhile, Kennex endures painful flashes from the past and pays a visit to the recollectionist.

When Det. Kennex and Dorian investigate the murder of a "chrome," there are no signs of trauma, other than a very small pinprick on the back of his neck. As the investigation unfolds, it's revealed that the murder suspect is tapping into the DNA of his victims in pursuit of perfection.