A Deputy DA specialising in high-profile cases, Rachel Knight is addicted to her work and fiercely loyal to her friends. But when her colleague Jake is found dead in a seedy Los Angeles hotel room next to the body of a teenage male prostitute, Rachel realises she might not know those around her as well as she thinks. The police want to write off Jake's death as a straightforward murder/suicide. Rachel doesn't believe it's that simple. Warned off the case but determined to track down her friend's killer, the investigation takes her through the dark and tangled city from its wealthy suburbs to its seamy downtown heart. And a truth so dangerous it could kill her.

No witnesses. No motive. No name. The homeless man's death seems an impossible case to solve. But Deputy District Attorney Rachel Knight isn't going to let that prevent her trying to bring his killer to justice. When she uncovers a link between this death and the vicious murder of an LAPD cop, one thing becomes clear: she's looking for someone who will kill to keep their secrets safe. Someone who is as smart and determined as Rachel herself. Someone who is already watching, just waiting for the chance to strike...