Although I don't know if this movie is the pioneer of the two-line narrative, at least, this technique must have been particularly fresh at the time. The film uses a lot of this technique and definitely adds a lot of points. Then... then nothing. In addition to being overused in the two-line narrative technique - to be honest, I have not seen the necessity of doing so. In fact, for this movie, the normal narrative will not be very different - there is no more bright spot , just is ordinary gangster movies.