It's like any other day in New York for freelance writer Ridley Jones. She collects some prints from her local photo lab expecting nothing more than a set of routine photographs. But when she looks more closely a shadowy figure of a man appears in almost every picture she's taken in the last year, just far enough away to make identification impossible. When she investigates further she soon discovers that everyone from the FBI to the criminal underworld wants to know who the man is - and where he is. And some people are prepared to kill to find out...