American Psycho ending explained: Was it in Patrick Bateman's head?

Breaking down the ending to Mary Harron's American Psycho movie adaptation from 2000, starring Christian Bale.
Breaking down what was real and what wasn't in the Christian Bale movie.

I saw Bateman as kind of a buffoon” – Mary Harron on American Psycho

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American Psycho' Ending Explained: Was It All in Patrick Bateman's Head?

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American Psycho' Ending Explained: Was It All in Patrick Bateman's Head?

American Psycho Ending Explained: What Happened To Paul Allen & How Much Was Real?

American Psycho Ending Explained: What Happened To Paul Allen & How Much Was Real?

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American Psycho (2000) - IMDb

American Psycho Ending Explained: What Really Happened?

What Does the Ending of American Psycho mean?

In the movie American Psycho (2000), Patrick Bateman is shown imagining a shootout with police. This is a clever way of showing that the things happening in Bateman's head is fictional, because

American Psycho Ending, Explained