Initial Ideas for the Plot of 'The Receptionist'

Below are some initial ideas for my storyline.

The opening shows Louise's character, Liz, looking creepy/sinister, similar to Jack Nicholson's character in 'The Shining', or with Louise's character dressed as a femme fatale character. 

Camera positioned straight on so she looks directly at the lens, breaking the fourth wall and engaging with the audience, or looking just past and beyond the camera.

In the next scene, which is a flashback, Louise's character is dressed conservatively (before she becomes the femme fatale character).

We see Louise's character being given a note by one of the boss' underlings, who is being rude and telling her to get her work done. Maybe have a slow zoom in/out.

In the next scene another male office worker is trying to be nice to Louise's character, but she bullies him, suggesting to the audience she has changed and that she has a darker, more sinister side.

Louise's character meets another female worker and is jealous of her because she is younger and the boss pays her more attention.

Louise's character is harassed/abused/bullied by the boss. 

Scenes of Louise's character crying in the bathroom.

Louise's character kills the boss.