Is L'Accident coming back?

In the peaceful Brittany town of Sainte-Lune, the body of Rebecca Cauvy is found in her car on a busy highway: drunk, parked in the wrong direction, she was hit hard by another vehicle. Gabriel, her husband, refuses to accept that this was a suicide or an accident. Anxious to restore Rebecca's honour and protect their young daughter, he leads the investigation, gradually revealing the results of a small community hit by recession. Is this "accident" just the tip of a terrifying iceberg?