Léo Matteï, Special Unit

A ten-year-old boy is found covered in blood. Apparently, he was the sole witness of a shoot out involving his father, who claims to have killed his wife's boss in self-defense. To find out the truth, Mattei has to get the child to talk. With the use of music, he manages to win his trust. Little by little, the boy opens up... and seems terrorized by his father. What could this man who seems like such a loving and devoted father possibly be hiding? Will Alice, the boy's mother, finally break the silence that the family has fallen into?

Eloise has been released from the juvenile center. Determined to take control of her life, she finds a job babysitting a four-year-old named Ethan. It's not long before the unique relationship she develops with the boy reveals issues she has repressed. After everything she's been through, is Eloise really capable of handling this child?

Based in Paris, France, Leo Mattei leads a police force dedicated to protecting and saving children at risk and solving crimes in which minors are involved.