How im going to shoot my trailer

I'm going to start my trailer with showing the audience the murderer following the first women. He follows her down a wooded alley, and takes a picture of her. She sees a flash and turns around but can't see anyone so carries on. He then grabs her into the bushes and kills her. It then goes onto shots of a big house, and inside is a girl sleeping in bed. The murderer walks in and grabs her mouth to stop her screaming then yanks her out of bed. The audience don't get to see him kill her though. He then starts stalking his next victim. He takes her photograph of her walking into her house, and prints them off and sticks them onto his board. However when he goes to wait outside her house for her the next day, she's already left and they accidentally end up bumping into each other. I go on to show different days out they spend with each other, to show them getting to know each other. One night whilst in bed together, he can't sleep, he looks at the clock and its 2:00am. He goes down the stairs and gets a knife. He then goes back to where she's sleeping, and lifts up the knife but then he can't bring himself to it. He gets frustrated and leaves. Later it shows the same clock at 4:06am, then shows clips of the mans feet in the shower with blood pouring to the bottom of the shower, and clips of him washing away the blood of his hands. This tells the audience without actually showing them that he got frustrated and went out and took his rage out on some other woman.
The trailer is shot in a linear way as not to confuse the audience and so they can get a good understanding of whats going on with out having to think about anything to much.