Noir and the psycho thriller;“psycho thriller,” subgenre of versatile thriller genre - crime, outward manifestation of internal workings of pathological individual psyche;Thriller, literary phenomenon covering a great deal of territory - different kinds of thrillers;psycho thriller's relationship to other genres - not easy to delineate, Robert Bloch's landmark crime thriller, Psycho (1959);two key writers in transitional zone, Jim Thompson and Patricia Highsmith - between noir and the psycho thriller;Psycho, the tale of the fatal intersection of worlds between pudgy, forty-ish motel proprietor Norman Bates;Red Dragon's killer, a pitifully lonely middle-aged man, Francis Dolarhyde, slipping into an alternate identity, the titular “Red Dragon”;noir and the psycho thriller - sharing many common features, as brief survey demonstrates