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.

Young drug dealer Pablo and his sister Appoline bond over an online game called Darknoon. Pablo falls for Night, neglecting his sister. While Appoline finishes the game, Pablo and Night become embroiled in a dangerous gang conflict.