Thriller - Initial ideas

Thriller – A play or film with an exciting plot which promotes fear, typically involving crime or espionage.

Initial ideas:
Low key lighting
Tapping into fears
Rollercoaster of emotions
Fast editing
Mystery
Pacing changes
Action
Justice
Loud dialogue
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What makes us scared?
Heights
Blood
Strangers
Night
Enclosed spaces
Criminals
Weapons
Violence
Darkness
Death
Weapons
Loss of control

Sub genres:
Comedy
Disaster
Psychological
Chiller
Espionage
Political
Romantic
Survival
Crime