The discovery of the bodies of a newborn and her mother leads to a dermatologist coming under suspicion of the rapes of young girls.

A missing teenager found beaten and tied up in a college dormitory under construction claims that she was raped by three students, but as the investigation proceeds and information obtained by the police and the press causes her story to unravel quickly, the girl recants. Since Benson remains convinced that a rape did occur, the focus of the investigation shifts to the girl's overly-protective stepfather who has resisted the investigation from its onset. When the girl finally tells the truth about the attack, it becomes apparent that her lies were calculated to protect her innocent stepfather from physical and financial ruin, as another victim of her attacker comes forward.

Benson enlists the help of a former cop turned psychiatrist in apprehending a serial rapist and murderer who attacks disabled women.