A famous writer, Mort Rainey (Johnny Depp), is accused for plagiarism by a strange man, John Shooter (John Turturro), who then starts "haunting" him for justice. Shooter becomes very insistent and he even suggests a strange legal solution that involves a crime with cold blood.
Being trapped in a psychological game, Rainey discovers that he is cleverer and more determined than he has imagined. However, he realizes that Shooter know him better than even himself.
Rainey's attempt to prove that the idea of the book was his doesn't have such a great success. Around him, it gets worse, crimes start to happen and Mort hires a detective.
In the end, the detective realizes that Mort is actually John Shooter.
The exact ending you will find out by watching the movie.