Thriller
The Thriller is a broad genre which often overlaps with other genres. They are often defined by the mood the elicit, providing heightened feelings of anticipation, suspense, suprise and anxiety along with a general feeling of excitment.
Thrillers will try and keep the reader on the "edge of their seat", literary devices such as cliff-hangers, plot twists and red herrings are commonly used with the story generally building to a big climax.