My Thriller Idea

My idea of a thriller is about an innocent man being murdered one night out with his best...A man is dropped off at his house, in the early hours of the morning by his best friend, both whom are extremely drunk. He stumbles out of the car and starts to stroll to his fron door, but is oblivious of his surroundings and falls to his knees to throw up. He is feeling extremely light headed and intoxicated with alcohol. He is breathing deeply and puffing. With that second, you hear a stabbing through his spine. He is dead.
I targeted the film to young adults, those who are similar to this man, so they can relate.
If I were to publish this film, I would like Warp Films to fund the film. They are an English film company whom publish low budget films, but are popular in English cinematic productions.
The whole clip is filmed from his point of view, you never see his face the camera also moves with his every move. When he falls to the floor, so does the camera. When he struggles out of the camera, the camera follows this too. You hear him singing in the car, vomit and being stabbed through the spine. All of these things I think help to make the open scene a person one that alowes the audience to be in his situation, almost to feel his emotions and even his death.
This would be a simple scene in terms of props;
Hurtwood ground.
A parked car.
2 men/actors
Stabbing Sound effects.
Darkness.
Standard clothing.
A few sound effects would be used to produce full effect and a deep response;
Radio Music.
Short, mumbled conversation.
Door shutting.
Panting breath.
Vomiting.
Stabbing.
Foot steps.