Leaving the force nearly ruined Ash Levine's life.

But rejoining the force could end it.

When a legendary ex-cop is murdered in LA, the pressure's on to find the killer. Lieutenant Frank Duffy needs his best detective on the case, but his best detective, Ash Levine, quit a year ago.

A tenacious, obsessive detective, Ash resigned after Latisha Patton, his witness in a homicide investigation, was murdered. Without his job, Ash is left unanchored-and consumed with guilt that he somehow caused Latisha's death.

When he's asked to rejoin the force, Ash reluctantly agrees. Getting his badge back could give him the chance to find Latisha's killer.

Ash dives in headfirst to investigate the ex-cop's murder in a case that propels him into the shadow lands of Southern California, from the seamy escort services of Hollywood, to the high-end art dealers in the Hollywood Hills, to the gangs of South-Central. But even when he has a suspect in custody, something about this case doesn't sit right with Ash, and he continues working the increasingly-dangerous investigation while quietly chasing leads in Latisha's murder.

Unable to let either case go until he has answers, Ash finds that his obsessive nature, which propels him into a world of private compromises and public corruption, is a flaw that might prove fatal.