In a seemingly random event, forensic anthropologist Lindsay Chamberlain is attacked and left for dead. Buried in a shallow grave in the woods, she manages to escape, although she suffers from loss of memory as a result of the ordeal. When Lindsay's memory returns, it is incomplete. She copes with the trauma by ignoring it, and she allows the authorities to handle the investigation. As the probe quickly comes to a dead end, however, the assault looms...