This is a true story, happened in France in the XVIII century. It talks about the hunt, lasted for a good four years, against a mysterious anthropophagous beast, which plunged into terror the poor people of the Gevaudan and of the Auvergne, today Lozere. This is the story of the men in charge of killing what was simply nicknamed the Beast, of the strategies which were carried out, of the beatings that were made even with dozens of thousands of men and many packs of dogs, of the long posts in the wild mountains of that area with such a terrible climate, so described : "Nine months of winter, three months of hell". In spite of the soldiers and the famous hunters sent by the King of France, the monstrous beast continued committing slaughters most of all of women and children, attacking hundreds of times and making at least 131 victims, many of which were devoured. Only after years of terror the Beast was finally killed and they were able to ascertain which species it belonged to.