Under house arrest with an electronic bracelet since her arrest two years ago on a beach, Lise finally goes to court for the murder of her best friend Flora. A month before the drama, the two teenagers quarreled about a video posted on the Internet by Flora without Lise's consent, showing the latter giving fellatio to a boy in their group. But according to the accused, the two friends had since reconciled. During the trial, without any direct evidence of the crime to implicate Lise, the prosecutor lingers on her morals to influence the verdict of the jury. His strategy shakes up the parents of the silent young girl, who struggles to distinguish the truth from lies in this painful affair.