Protagonist (someone vulnerable)
Typical black background with white text (to stand out)
Use of fades and cross dissolves
No dialouge ( doesnt give you any clues through dialouge what is going on
voiceover ( adds suspence because you cant see the persons face)
Conscience (can feel what the person is going through)
Flashbacks (gives the audience an insight into expericences of the character)
Either fast up beat music to create tension or slow mysterious music to build suspense.
Low key lighting