Ronald Adams is leaving for an 8 day driving trip. He is saying goodbye to his mother, who doesn't want him to leave. She is worried about him driving.
He's been following me!
You almost killed that dude!
Adams is driving over the Brooklyn Bridge. It is raining. He sees a hitchhiker and swerves, almost hitting him.
Adams sees the man again. And again, and again! It's starting to freak Adams out. The man simply says, "Hall-oooo." People he asks about the hitchhiker think Adams is crazy.
Adams can't stand being on the road any longer. He finds a girl who is a hitchhiker, and offers her a ride. Adams sees the man again and he tries to kill him. The girl freaks out and gets out of the car.
Adams calls his mother and a woman picks up. She says that his mother is in the hospital with a nervous break down after the death of her oldest son, Ronald Adams.
It turns out Adams was dead the whole time. He never made his trip. Everything he did, was after he died.