Of course, the plot brings quite a bit of ingenuity to the films. The who-dun-it model keeps the audience guessing until the very end. Not only that, the timeframe is unique as it shifts to past events and back into the present day. This helps the plot reveal itself in a much more mysterious method. This type of directing really set up and foreshadows a lot of Tarantino's later films as he has often used it over and over again for his sleek style.
Finally, it is crucial to bring up the compilation soundtrack for this film. This is another tool that Tarantino has used to compliment his movies. All of the 70s music really brings the audience into the time period that the movie supposedly takes place in. Maybe I just love 70s beats, but every scene has some sort of iconic piece of music that keeps me focused on the screen through its constantly pushing tempo. The music creates a flow that the film might not have without it.
The Bottom Line: This is a fantastic film that foreshadows most of Tarantino's later films through its unique style and method.