So single-minded is antiques dealer François Coste (Daniel Auteuil) that he's failed to make a single friend over the years -- a point his business partner (Julie Gayet) is willing to wager on. With a prized Greek vase at stake, Coste must find a best pal in 10 days or pay up. The arrogant Parisian turns to a gregarious, lowbrow taxi driver (Dany Boon) to teach him how to make friends in this buddy movie (without the buddy) from Patrice Leconte.