Desc: Jean-Yves Thériault: la rage de vaincre: Directed by André R. Lavoie. With Jean-Yves Thériault, Jean-Paul Chartrand. -He is nicknamed "Iceman" and has been the world champion in kick-boxing, light-heavyweight category, since 1980. Jean-Yves Thériault is a gentleman in the full force of the word. How does this reserved and unassuming man transform into a cold, dominating and "enraged" man when he has to face an opponent? André R. Lavoie wanted to know. He followed him during his training, in the suburbs of Ottawa, to Geneva, where he had to fight, once again, a "final" battle, like a solitary hero facing his destiny.