The story begins on June 24, 1995. Two girls next door, Julie and Melissa, disappear. The parents are completely in the dark. There is no trace. With the commitment of many, they organize their own searches. In vain. The uncertainty gnaws. 

The funerals of the four murdered girls are broadcast on national channels. The country is in mourning. "The question of why they died will always gnaw at you," says Paul Marchal, An's father. The sadness gives way to indignation when the Court of Cassation issues its so-called spaghetti judgment.