Frame One
This first shot sets up the entire scene as we see an establishing shot and also the font of the writing which is in the style of typical thriller.
Frame Two
In this shot, the audience is introduced to one of the main protagonists in a seemingly ambiguous circumstance. It is not until a little later in the scene, when his real character is revealed.
Frame Three
The conversation between the original two main characters entirely sets up the story, as the audience learns a bit about their past and also the reason why and how they know each other, and also what they're doing there, at the specific time.
Frame Four
As the scene goes on and the characters interact further, the audience is given clues as to why the character is really there. This scene builds the story up and the music behind it adds to the tense and mysterious tone of the piece.
Frame Five
The next establishing shot ecorporates the surrounding characters as the audience become more aware of what is about to happen. The piece has been fairly relaxed up until this point.
Frame Six
With fast camera editing, the audience find out what happens in this scene - that they have planned to kill the first character we see. And an important character at that, as it all relates to the entire story of the piece, and therefore relates to the end, when everything is sorted out. This character who is attacked is the main key to the whole story and narrative.
Frame Seven
We see this character has no remorse and feels no guilt about being a part of the murder that has taken place. We now understand that he is the 'villain'/ 'bad guy' of the film.
Frame Eight
The audience are very much let in on the story and encouraged into it as they see each part of the experience, including how the villains fake the death.
Frame Nine
In the last few frames, we see establishing shots as the car plunges into the lake. This feels like symbolism 'taking the final plunge' and a good, dramatic way to end the first scene before rolling the opening titles.