A series of brutal murders has the homicide division of San Francisco's Hub 9 working overtime. But as the bodies mount, they begin to question whether the attacks are random or somehow connected. When one of their own falls victim, Detective Salvi Brentt and the Hub 9 homicide team join forces with the narcotics and cyber divisions to track down those responsible. They soon discover a volatile new drug-tech experience, involving black market neural implants, has hit the streets, causing the epidemic of violence and missing persons. With the clock ticking and the bodies piling up, Salvi must go deep undercover in the seedy Sensation club scene to found out who is behind it. But in the secretive playgrounds of the rich and powerful, some will stop at nothing to protect their empire...