Thriller is a genre of literature, film, and television that uses suspense, tension, and excitement as the main elements. The primary subgenre is psychological thriller.
I have chosen pyschological thriller as I feel that it has a true connection with the audience. Particularly in this film "Memento", it plays with the viewers mind. Leaves them baffled and not knowing what's going on, while at the same time leaves them interested in the film. Wanting to know more.