For David, it should have been the perfect day. But a chance encounter changes everything when a stranger follows him, and then passes by close enough to whisper: 'Remember me'. Soon David realises that this man wants something from him ...something very personal, that he may have no choice but to surrender. Meanwhile, John Henderson does his girlfriend a favour and agrees to talk to a friend who believes she's being stalked by an ex-lover. But the problem is more complex than anyone could imagine. There are people out there in the shadows, watching, wanting to be with you. And they'll do...