Burn (1998)

Ben is a twenty-something screenwriter who's having writers block. He isn't helped in his struggle by a school chum, Tom, who has just completed a novel and is now meeting with publishers. Still, Ben invites Tom in and it is soon revealed that Ben has a longstanding hatred of Tom. Only when he listens to Tom make love with a publisher's daughter does Ben's block begin to lift as he simultaneously begins to write and plot his friend's downfall.