Every 90 seconds someone is reported missing in the UK.
Could a hand-written letter solve a baffling mystery?
Including the case of a teenager who went missing over Easter.
The case of Denise Jarvis, missing for eight months, and new leads about Jordan Moray.
Including a look at the mystery of Katrice Lee, who vanished in November 1981.
Including the case of York chef Claudia Lawrence who disappeared in March 2009.
Including the case of Marcus Rigby who went missing from Grange Over Sands, Cumbria in April 1995.
Including the mysterious disappearance of Alex Sloley from Edmonton, North London in August 2008.
