Ok, I don't have a lot for you to go on here, but about 2 years ago I heard a review on NPR of a French film that, to the best of my recollection, was about a man who was traveling home to visit family, and somehow picked up an old friend. I believe it turns out that the old friend has been involved in some unsavory kinds of illegal activities, but I may totally have the details wrong on this.  Does this ring even the slightest bell for anyone?