Final Project Pitch

For my final project I would like to make a Golden Doorknob. The protagonist of the story would be a male in his early twenties. He comes back to his apartment from class and finds his girlfriend packing up her belongings. The girlfriend leaves the apartment and hands him an engagement ring. The protagonist is both depressed and furious. He goes over to his closet and looks in the shoebox full of memories that he has of the two of them. A little while later he goes back into the closet but when he opens the door, he does not see his clothes hanging or anything. He sees a moment from his past that he shared with his girlfriend. During the film, he will see multiple memories that he shared with his girlfriend. I was thinking of using the time they first met, their first kiss and when he proposes to her. The final moment that the protagonist will see is the time that his girlfriend cheated on him with another man. I still have to develop the idea more but I want to have the protagonist kill the girlfriend and the other man. When he is about to do it, there will be a flash and the final shot will be the protagonist hanging in the closet and all you see is his legs. The protagonist imagined killing the two others but actually committed suicide.