Build up to big event.
Makes you sit on the edge of your seat.
Scary music > engages the audience.
Audience knows something that the character's dont know.
Cliff hanger > we're left on the edge (Good way to end and opening...?)
Visceral effect > Makes you hold on to your pillow, bite your nails, heavy breathing and etc.
+ Hitchock's "Bomb Theory"
+ False Plateau