亨利是一位身处危机的中年作家:已婚,育有四个孩子。多年前,他的作品获得了巨大的成功,如今却已不再辉煌。就在他评估自己的生活时,一条又笨又臭的大灰狗偷偷溜进了他们的房子。尽管全家人都试图将狗赶出去,可妻子无私的爱开始动摇——这只被他们称作“笨蛋”的狗即将成为亨利最好的朋友。Henri is a middle-aged writer in crisis: married and father of four children, he obtained, many years ago, an editorial success that he has never repeated again. Just at a time when he assesses of his life, an enormous gray dog, impolite and smelly, sneaks into Henri's house. Despite the attempts of the whole family to throw him out, and that his wife's unconditional love begin to falter, this dog, whom they decide to call "Stupid," is going to become Henri's best friend.