Wissam El-Yamni, a 30-year-old truck driver, is arrested after throwing stones at a police car. But the muscular intervention of the police officers from the Clermont-Ferrand police station goes wrong.

Nine days later, the young man died in hospital after falling into a coma. Since then, the family has been fighting to find out the true causes of death. They are convinced that the intervention of a third party is at the origin of the tragedy.