Paul Auster
The story follows a man named Daniel Quinn. One night, he receives a call meant for a private detective (strangely enough named Paul Auster, the same name as the author of the story). Quinn is intrigued by the phone call, and takes the case. His employers end up being a man, named Peter Stillman, and his wife. Through the course of the narrative, Quinn discovers some surprising things about identity, language, and human nature. He also ends up meeting, not the unseen detective Paul Auster, but writer Paul Auster.