Get The Balance Right wrote:
*****spoilers**********8
Not in his head. He really did do it.
The movie was about greed, material possessions, and power in the 1980's. The only way people really knew each other in the movie was through hearsay on what accounts they held, what suits they wore, what restaurants they could get into.
The main character (Bateman) was mistaken for several different people throughout the course of the film - and he desperately wanted to fit in...but ultimately wanted to be known and have his own identity.
Bateman did really kill Paul Allen. The problem is none of the other characters really knew who Paul Allen was. Nor did they really know Bateman. Hence the confused lawyer at the end of the movie.
The author, Bret Easton Ellis, has confirmed that he really did murder those people.
This person is correct.