Une étrange affaire

When new boss Bernard Malair arrives to turn the store around, Louis fears for his job; but Bernard, with his numbers man Paul and his factotum François, invites Louis into an inner circle of long hours of work, nightclubs, and dinners. Nina objects, but Louis cannot say no to Bernard's demands, no matter how personal. In desperation, Nina leaves Louis, but that drives him further into Bernard's orbit. Can anything break this spell? (IMDB (adapted))