Zef, twenty years old, is a simple-minded man who can only say one word: "love you". Always happy, loving everyone, he lives with his sister Sophie on a farm in the Lot. Attracted by the sad smile of Marie, he rapes her one evening without realizing the gravity of her act. Internal in a psychiatric asylum, Zef falls into a deep silence. Hugues, a doctor with avant-garde methods, is in charge of caring for Marie. He decides to put it in front of Zef, persuades that his healing goes through a long reappropriation of life and love.