A dead body sends the detectives into the world of deep sea treasure hunters. When the body of a diver washes up on shore, Robert Goren and Alexandra Eames clash with the FBI over possible terrorist connections, then track the murderer into the high-stakes world of deep sea treasure hunters.

A young woman is murdered, and the detectives dig deep into her rising social life to uncover her past. When young literary up-and-comer Kira Danforth is tortured then murdered in her apartment, Robert Goren and Alexandra Eames untangle the victim's conflicted life, one torn between the posh literary scene she covets and the disenfranchised urban roots she seeks to transcend. The investigation uncovers equally deadly predators lurking in Kira's seemingly disparate worlds.