Genres and Openings: Codes and Conventions

Psychological thrillers generally open with a scene forseeing something that happens later on in the film, whether it's a metaphore or an actual scene that is repeated in the film. The themes are generally eiry or disturbing with comedy aspects added in to present the pyschotic nature and personality of the central protagonist.
An example of using a scene at the beginning of the film that is repeated later on in the film is Memento but the scene is shown in reverse to confuse the audience, Identity also uses this method.
Secret Window uses the approach of using metaphores to forsee the ending of the film in where a book written by the central protagonist becomes reality in the ending.
These methods are used in order to make the audience think along with the characters in the film instead of adding dramatic irony like in most films.