Use compelling sequences of shots to build action. Use reaction shots to achieve the fright demonstrated by Alfred Hitchcock in films like Psycho?
The theme of this contest calls upon the amateur producer and director to make a mini-movie, that runs three minutes or less, and exclude graphic violence or gore.
You may think you saw gratuitous violence and gore in M. Night Shyamalan's The Sixth Sense, but take another look. He mastered creepiness and a sense of dread by building suspense.