Judith Fauvet (Virginie Efira) is leading a double life. In Switzerland, she and Abdel are raising a little girl. In France, she and Melvil have two teenage boys. The oldest boy suspects something with his absent mother. The situations spiral out of control as she can't control everything.

This is a French psychological thriller. There are some great tension in individual scenes. The police station is tense. The little girl is devastating. Stepping back a bit, one is struck by her self-destructiveness. In a way, it is hard to sympathize with her even as the tension in the movie gets ratchet up.

This movie has stayed with me since I saw it. It is great story-telling, masterfully constructed. The story reveals itself gradually - and conceals itself too. Also, it is superbly filmed and acted. It really is a masterclass in how to tell a story, how to put all the elements together in an intelligent and engrossing way. And not to just tell, but to avoid telling. It uses sleight of hand - or sleight of brain - like a magic trick. It makes the whole to be more than the sum of its parts. Saying all that, it is not a movie that is hard to follow. I also love the sound and diction of the French language.