When the naked body of a man wearing a bull's head is discovered at the Gare de Bordeaux-St-Jean, Captain Anais Chatelet is the first detective on the scene. That evening, an amnesiac is found wandering along the road carrying a car wrench covered in blood. He is taken to a nearby psychiatric institution and placed under the care of psychiatrist Mathias Freire. Before long, Anais's investigations into the murder introduce her to the Greek myth of the Minotaur and she becomes increasingly suspicious of Mathias. With Jean-Hugues Anglade, Raphaelle Agogue, Michael Cohen, Hocine Choutri, Didier Flamand and Mathieu Simonet.