Paul learns the truth about Joséphine's disappearance, Niels seeks help at a residential clinic, and the testers' hallucinations take a dark turn.

To activate her mother's memory, Esther returns to their old home and uncovers a shocking family secret. Niels receives an unexpected visitor.

As both Esther and Lucas struggle to come to terms with their new realities, Billie helps Ana through a crisis, and Martin begins to act erratically.