This is a very fine psychologic thriller in some mellow tones. The story is simple : a boy gets killed by a mad car driver and his father wants to find the man to kill him. We know, from the start, that there can be two finale : the father kills the man, or he changes his mind. But Chabrol makes us think that it can have another finale... Or another? Or perhaps this one? Not at all! We never thought of the real finale. This is brillant, well written and directed movie. Very fine acting by Duchaussoy and Yanne.