Harry Nelson had a dream, unremarkable although slightly disturbing, especially since he'd dozed off at his regular job to get it. The dream was nothing new except that he remembered more details of the dream than he usually did. A few hours later as a reserve police officer he is sent on a call where he realizes his dream was an actual event, he was an eye witness to a crime, and he knows who the suspect is. A piece of information he can't use by legal standards even though he confronts and arrests the suspect at the site. What drew his attention to the suspect comes under scrutiny since there was no physical evidence to suggest the man had anything to do with the crime. Harry begins to get more and more dreams, short visual experiences, that are disconnected and meaningless in and of themselves but when he's out doing normal activities of life or at his work, as if déjà vu, the dreams fuse into reality. He sees the disjointed clues of his dreams happening and knows that a crime is about to occur a crime he can prevent. He can't interfere as a law officer, because he has no tangible probable cause, but he can react as an interested person because his premonitions have led him to what is about to happen. He has to learn to struggle with this dilemma. Never given enough of a picture to move on directly, always having to see and recognize the precursors and react to what is about to happen.