When a midshipman plunges six stories to his death, the U.S. Naval Academy begins investigating an apparent suicide. But there's a bizarre twist: the young man's body is found wearing undergarments belonging to Midshipman Julie Markham, a senior at the academy.

Julie's father Ev, an Annapolis graduate who is now a professor there, fears his daughter will be blamed by the "Darkside"—the bureaucracy that wants to protect the academy at all costs from scandal. Then there's another death, and the beautiful grounds and impregnable traditions of Annapolis are revealed as the hiding place for a relentless predator who can no longer control an impulse to kill.