After the death of his daughter Anna, aged 10, Pascal Morin, mayor of the commune of Juxen, transfers the death of his daughter to Lola, aged 11, daughter of his first deputy, Erika Mann. When Erika and her daughter are invited to his home for dinner, Pascal drugs Erika and takes the opportunity to kill Lola. Early in the morning, while two teenagers are flying their drone in the forest, Lola is found wrapped in a shower curtain. Captain FENELEC and his deputy constable Lefèbre are called in to do everything they can to stop Lola's killer, even if it means losing their lives as cops.