Adèle and Rocher arrive to the crime scene of a triple murder: Monique and Jean-Christophe Sérail, 60, retired, and their son Vincent, 31, have been attacked on their sleep and mutilated; their left hands cut off. The DPJ finds that Vincent is miraculously alive; his older sister lived abroad. The MO of the crime leads Courtène to the case of a student murdered in 2002 by David Webber, her philosophy teacher. He has been in prison for fifteen years, but he is a disturbing and charismatic man. The new director of the prison is Baranski.
—mgallegog