The football club in a small town in northern France is trying to defend its title during the season's last match. At the moment of the winning goal, a supporter is murdered in the stands. The local team's coach asks his daughter Alexandra, a Parisian police officer, to help.

Nicolas discovers that his brother, killed in the stands during the football match, left him a message on his phone calling for help just before the match. He tries to convince Alexandra to wait until the end of the investigation and to not go right back to Paris.

Alex is close to solving the murder, but her relationship with Nicolas threatens the case. However, when a match-fixing scandal is linked to the club, Alex knows that she must uncover the truth no matter what the cost.