L'Heure du secret

While Vincent is in Geneva on business with wealthy Russian clients, Lyne—who has lived in Le Locle for a year—has a new vision of a frightened child running toward a cliff. Determined to find the boy, she searches Creux-du-Van and discovers a corpse.

Two new bodies are discovered in Creux-du-Van. Police suspect the leader of a spiritual community near Le Locle. Meanwhile, Lyne and Vincent realize their relationship is no longer as intense as it once was and decide to take time to reflect.

Ariane and Bugnon, the two police officers, ask Lyne to stay away from the investigation. Guided by her visions, she persists with her own research, convinced that not all the bodies buried in Creux-du-Van have been found.

As Lyne prepares to return to Quebec, a fourth body is discovered. The leader of the spiritual community near the discovery site is arrested. Lyne begins to understand her visions and receives a mysterious message.

Despite warnings and threats, Lyne is not intimidated. She ultimately finds the child who haunted her visions, a discovery that allows her to unmask the killer who buried the victims in Creux-du-Van.