The Icy rain sprayed across the lake in shards of sharp splinters. Kaye's skin smarted and dribbles of water slid inside her clothes. She was gagged and bound. And the only person who knew where to find her wasn't coming back ... Fifty miles away in Cambridge town centre a deeply disturbed young women is standing by a payphone. She knows she often feels compelled to do harmful things and is driven by a desire to make a call. DC Gary Goodhew listens to her anonymous voice. She is crying as she speaks: 'Kaye isn't the first and won't be the last ... ' And he knows it is their only clue.