A case from the past comes back into play as Pritchard and Duval investigate a series of murders involving young prodigies. As the investigation unravels, Duval comes to terms with the possibility that Pritchard could be his father reincarnated. Meanwhile, Pritchard manages to become a confidential informant for the FBI

Pritchard and Duval must stop a killer who mutilates and disfigures his victims. Meanwhile, as Pritchard and Mary grow increasingly close to one another, Otto feels resentment and wants to find a new donor.