In the near future where emotions have become a threat, Gabrielle finally decides to purify her DNA in a machine that will immerse her in her past lives and rid her of any strong feelings. She then meets Louis and feels a powerful connection, as if she had known him forever.

A novelist attends the trial of a woman accused of killing her 15-month-old daughter by abandoning her to the rising tide on a beach in northern France. But as the trial continues, her own family history, doubts, and fears about motherhood are steadily dislodged as the life story of the accused is gradually revealed.