This is like the French version of Michael Mann's "Heat." Daniel Auteuil and Gerard Depardieu are like the Al Pacino and Robert DeNiro of France.
These heavyweight actors really do a good job in this cop drama where they play former friends and colleagues who work in different competing departments at the French police. Depardieu plays a gutless immoral cop. Auteuil is the family man who is not perfect himself but is far more moral than his former buddy.
It shows the grit of Paris that people outside France don't usually see in French movies, like the mobs, the gangs, the corruption of the urban ghettos. Instead of pretty cafes and the Eiffel Tower, we get to see alleys and project housing.
Italian actress Valeria Golino plays Auteuil's wife. Auteuil's character tries to protect her from the ugliness of his job by not telling her anything. But circumstances beyond their control later on force her to get involved. The director brilliantly puts it all together.
I know some people didn't like the ending. I thought it was fine and I was not at all disappointed. The other supporting actors like Andre Dussolier who are all famous in France also do a good job. We really liked this movie and highly recommend it!