Even if you havent seen the revered Alfred Hitchcock movie, you may be familiar with the setting of The Bates Motel. The 1960 American horror-thriller follows secretary Marian Crane who finds herself at a secluded motel that is run by a mentally disturbed manager, Norman Bates. The most famous part is the shower stabbing scene, where chocolate syrup was reportedly used for blood, as it appeared better in the black and white film. The Library of Congress has deemed the film, culturally, historically or aesthetically significant and it was chosen for preservation in the National Film Registry. https://www.youtube.com/watch?v=dYDxxHrlmUg Because of the movies acclaim and influence in the genre of horror, its widely popularbut you may be familiar with the plot despite not having seen it. Just knowing what The Bates Motel is may be a good first point of reference for Psycho.