Gisèle Benoit has been studying and painting the predators of the Canadian boreal forest for four decades. She shares this quest with her parents, Monique and Raynald. After fifteen years of patient work, the naturalists have produced this unique documentary on the Canadian lynx, mysterious guardian of the forgotten secrets of Amerindian legend. Raynald's admirably filmed scenes take us into the intimate world of this feline, known for its discretion. Its character, its behavior, its love affairs, its relationships with other species - many facets of its life are revealed through the observations of Gisèle and her family. A tribute to the wild world and respect for its laws, which guarantee balance and sustainability.