Are you as much of a criminal if you don't act when there's a crime taking place in front of you as you are one of the participants? That was something that I was thinking about a lot because there are many moments in 'Less Than Zero' where horrific things happen and Clay could do something about them, but his passivity stops him.

In 2010 Ellis released the sequel to his debut novel in the form of Imperial Bedrooms. In a 2010 interview however he claims to have "lied" about this explanation. Ellis records a fictionalized version of his life story up until this point in the first chapter of Lunar Park (2005).

He was at first regarded as one of the so-called literary Brat Pack which also included Tama Janowitz and Jay McInerney. In later years Ellis' novels have become increasingly metafictional. Mary Harron's adaptation of American Psycho was released to predominantly positive reviews in 2000 and went on to achieve cult status.