Brain storm for shots in my short film

I still feel unsure for my ideas of narrative in my 5 min short film at the end of year 13. However, I have had some thoughts of the type of shots and the framing of them I would like to include.

I like the idea of seeing someone asleep and an unnerving figure behind them and the person wakes up to look around but they're gone. I would use a close up on the face of the victim. two person shot to show the situation and a panning zoom when the figure disappears.
I also like the cliché of a character waling away and the figure is in the mirror reflection or a character closes a door and the figure is behind it. I know it can be over used but I feel as though it is affective. I would use most likely medium shots as I wouldn't instead the shots to last long and I would want the audience to gather as much information as possible and be left slightly shocked and confused.

I feel like these shots may be hard as I picture allot of them happening at night and I don't have the budget for a good night camera or subtle lighting. Maybe I can do some research into ways to achive this on a budget.