Ruben is a Belgian customs officer with an abiding hatred of all things French. Mathias is a French customs officer who's secretly in love with Ruben's sister, Louise, the girl from the chocolate shop. The would-be couple's love will be tested by a series of hilarious misunderstandings involving a drug smuggling ring, a Gaul-hating Belgian father, and Ruben's desire to see his sister get married…to a fellow Belgian, of course.