August 1991. Filmmaker Jacinto Molina, better known as Paul Naschy, is suffering a heart attack. While he is being taken to the operating room, all his memories pass through his mind like a film. Good and bad times come to mind, and a film in which he poured his likes and dislikes, "El aullido del lobo (Howl of the Devil)". And all the memories of his childhood that left their mark on his films, a clear symbol of authorship. Meanwhile, like a dream, a child is chased by a wolf in the forest...