When a film student named Sean moves to L.A. to open his door of opportunity in the mainstream film industry, his interest takes a turn down a different path. While looking for a job, he passes his time watching rented movies. When a tape has been put in the wrong box due to a similar title, he becomes obsessed with an adult film star named Johnny.
Due to his obsession with Johnny, he begins to turn down opportunities for mainstream jobs and becomes a cameraman for the production company Men of Janus. This production company happens to have an exclusive contract with Johnny, which is an added bonus.
Sean becomes a "fluffer" for Johnny. A fluffer is someone who performs sexual acts on the stars to help them keep their erections. After being a fluffer for Johnny several times, Sean tells a co-worker that he has developed feelings for Johnny. He is told that his feelings are a joke. Johnny is just a straight porn star that acts gay for the money.
Johnny begins to spiral downward when he develops an addiction to crystal meth. His girlfriend finds out she is pregnant and decides she cannot rely on Johnny to help her raise the baby. She breaks up with Johnny, changes the locks to her apartment and has an abortion. When Johnny returns to the set, he is fired for missing a shoot that had been scheduled.
When Johnny is wanted for questioning of the murder of an employee of Men of Janus, he runs to Sean for help. They run away to Mexico. When they get there, Sean decides to sell his car so that they can have money to live off of. When he wakes up the next morning, Johnny along with all of his money have disappeared. He tries to find his way back to the US but decides to try and look for Johnny in a place they had once discussed visiting.