Picardie, 1963. A truck drops a group of illegal workers by a deserted
stretch of canal in the dead of night, desperate travellers in a
pipeline, searching for a better life. Days later, one of them surfaces,
stabbed to death. For Inspector Lucas Rocco, finding the victim's fellow
travellers presents problems. Most Algerian immigrants are welcome, but
trawling for any who aren't is a sensitive issue loaded with threats of
civil unrest--something which terrifies his bosses in the Ministry. And
when Rocco is ordered to stay away from one factory where he suspects
illegals are employed, it goes against everything he knows.