In June 2016, I attended the trial of a woman who killed her baby daughter by dropping her off at high tide on a beach in France. I imagined that she wanted to offer her to the "sea," a more powerful "mother" than she could be. Inspired by a true story, but fueled by an imagination that summoned mythological figures, I wrote this film: the story of a young novelist who attends the trial of an infanticidal mother with the aim of writing a contemporary version of the Medea myth. But nothing will happen as she had planned. The opacity of the accused will constantly return her to her own ambiguity about motherhood. It is a film that I wanted to make to probe the unspeakable mystery of mothers.