They're illegal. They're undocumented. They're disappearing. The last thing Finn O'Brien wants is to come between his partner and her daughter, but Amber Anderson is desperate for his help. Her new boyfriend, an undocumented immigrant, is missing. Cautious of his precarious position in Wilshire Division, uneasy about keeping a secret from his partner and hindered by the prejudice and politics of the LAPD, Finn is tempted to turn a deaf ear to the girl's plea - until the first body is found. Fighting a system that wants to turn a blind eye, Finn tracks a serial killer who preys on the most vulnerable, one with a gruesome secret that has been buried under decades of shame. To stop him Finn O'Brien navigates a shadowy world where life is cheap - even his own.