My Idea for Thriller Sequence

After being able to look over both my initial ideas for my Thriller sequence I have come to the conclusion of choosing "initial idea two":

This idea is based about a crime thriller and it starts off with a rising shot of a woman, stereotypically, in 'her' kitchen cooking some sort of meat, a very bloody meat. The shot will reach her face after seeing her bloody hands with gloves. She will hear dogs bark from outside, she will pause completely and stare up, looking blank at the camera (this will hopefully put the audience in an ambiguous situation, making them feel uncomfortable). The woman's face will then cut to a shot of the dogs back and salivating outside, through a glass door which has their spit and saliva all over it. Then the camera will pan across the room from the dogs back to the woman, who is cooking, and in the transition there will be an open cupboard or door which clearly has something inside, the thing that the dogs were making noise about. The panning of the camera will reach the woman's hands again (but they will have frozen, as well as her face (sill)).  There will then be another rising shot of in front of the woman's arms to her blank face. as this transition is happening there will be a build up of non-diegetic sound and then it will stop, when it stops the woman will continue cutting the meat. As the shot of her face cuts to a black screen you hear a gun shot a a whimper of a dog, leaving the audience thinking about what the meat was and what type of person this stereotypical housewife is.

This has been edited as I have had to to adapted it making it a lot more descriptive and powerful for the audience.
I have come up with an outline for this idea of my thriller sequence (coursework):
This woman in the kitchen is seen, at the start, to be a normal housewife cooking dinner as the usual but after the audience hears the gunshot and the whimpering of the dog they might start to question the type of meat that she is cooking. The plot of this sequence could be that she is some sort of murderer/serial-killer.