Returning home after spending four years in Lebanon, a doctor agrees to kill those responsible for a massacre, one of whom is the lover of his daughter.

Pierre is a doctor. He has just returned from Beirut, his head still filled with the images and rumors of the war. He barely realizes that he is back in Paris. He has only one idea in mind: to find his 16 year old daughter, Claire. Claire, for her part, has long fantasized about her father, a hero and adventurer. She even dreamed of following him there. But the man who returns is not the one who left. Because there is always this war that he carries with him, this contract whose sponsor, Kassar, does not cease to remind him the clauses and the obligations.