A Sleeping Dog is a film on jazz form and jazz musicians. A bunch of not at all rich guys. And not famous either. Those sort of people you would never recognize in a supermarket queue. On their way, they found the demon of jazz, without any way out. And they live for that. That's their priority in life. A flowing genre, dynamic and indefinite. Jazz. It only believes in the present and in itself. As a result of that, the film is the magic of their music told through the envy that lies in our eyes. Because we could see them living within their music, in just one moment. Forever.