A 25-year-old estate agent disappears in 1992 on a routine house viewing in the West Midlands.

Andy Whittaker and criminal psychologist Dr Julia Shaw look back on all the twists in this sinister story with a mixture of contemporary interviews, audio drama and BBC archive.

There’s graphic descriptions of violence. For details of help and support in the UK, visit bbc.co.uk/actionline.

Michael Sams is played by Anthony Lewis.Julie Dart is played by Joanne Moore.

Producer: Andy Whittaker.Online Producer: Rachael Smith.Executive Editor, BBC Radio Nottingham: Chris Pegg.Executive Producer: Kathryn Morrison.