I struggled through to the end so it's going to get four stars. However, there was no real tension, no feeling in me that I needed to know what was going to happen next. As this series was under the Arte imprimatur, I had expected more.
Situations seemed artificial and forced. Simon's hiring at the docks was just not credible given his easily-guessed motivations. That he wormed his way in so easily just didn't make sense. And he would never have got away with an affair with the wife of an imprisoned Maghrebi hoodlum from day one - the ghetto would have been onto it immediately.
I draw a veil over the utter ridiculousness of the final minute of the series. I just don't know why that was tacked on. I have no idea why the cops weren't present either.
So not really recommended; it was actually hard work.