When two men discover the severed hand of a child, Niemans and Camille find the local police distracted by the case of a serial killer armed with a rifle. Can they find clues at a children's home?
A child's severed hand is found in the village of Roubaix. Niemans and Camille find the local authorities uncooperative but uncover a link to a local orphanage. Their investigation leads them to the cold case of 3 serial murders and a spate of child abuse cases dating back 20 years.