A series of shootings exposes San Francisco to a methodical yet unpredictable killer, and a reluctant woman decides to put her trust in Sergeant Lindsay Boxer. The confidential informant's tip leads Lindsay to disturbing conclusions, including that something has gone horribly wrong inside the police department itself. The hunt for the killer lures Lindsay out of her jurisdiction, and gets inside Lindsay in dangerous ways. She suffers unsettling medical...

Detective Lindsay Boxer and the Women's Murder Club make a courageous return for their fourth and most chilling case ever-one that could easily be their last. In a late-night showdown after a near-fatal car chase, San Francisco police lieutenant Lindsay Boxer has to make an instantaneous decision: in self-defense, she fires her weapon-and sets off a chain of events that leaves a police force disgraced, an entire city divided, and a family destroyed....