Caïn and Abel

S2 E3: A horrific murder has taken place. A woman has been mercilessly mutilated. And she was Cain's friend! Mortified and perplexed, Captain tries to approach the case professionally. It seems that the murder was done by a copycat, aiming to imitate the work of Emmanuel Pasquet, a demonic serial killer. And Cain has a suspect in mind: her husband and his old friend Abel!