Épisode 3

During Hugo's latest dive, an extraordinary event occurs in the submerged city. This catastrophe nearly claimed a life. Noémie is far more affected than she admits by this investigation, which brings back a childhood trauma. At the home of Jean Casteran, Cyril's father, Noémie and Romain unearth a diary that belonged to the missing little boy. His childhood words directly incriminate his father and constitute new evidence of his potential guilt. But the man is suddenly nowhere to be found...