Making a thriller thrilling.

I will be talking at the NewWriters festival (see earlier blogs for details) at 12:15pm. The subject matter: What makes a thriller thrilling?

Great thrillers provide a roller coaster ride of adrenalin, but what makes this possible?

Memorable characters aside, I view the following as the crucial elements that go to make up a thriller.
They include:
Establishing plot.
The importance of conflict.
Providing hooks.
Creating suspense.
Planting twists.
The ticking clock.
The surprise ending.