CORNWALL, ENGLAND. In the summer of love, 1967, two children witness a murder. One, a seven-year-old boy, views it from fifty yards – the other, a young Irish girl, from miles away.
LONDON, 2006. With retirement looming, DCI John Kennedy reopens the only case he never solved: the disappearance of a young nurse, Kathy, twenty-three years earlier. A Crimewatch cold-case reconstruction follows, tracing Kathy's last known movements. A new witness emerges, and Kennedy, finding himself on the trail of a serial killer, unwittingly sparks a sequence of events that lead him into ever increasing danger.
As the investigation unfolds, it becomes apparent that the murderer is no ordinary adversary. Resourceful and cunning, it seems only the original witnesses from 1967 can stop him. But they have yet to meet.