<p>Elaine O’Hara disappeared from her Dublin home in 2012, at the age of 36. &nbsp;She left behind no trace. Her family struggled to understand what had happened to their bright and friendly sister and daughter.</p><p>One year later, a woman walking in the woods of Dublin discovered Elaine’s remains. As Gardai began to piece together her final moments and days they saw traces of a dark and sinister side to Elaine’s disappearance and death.</p><p>The mission to find out what happened to Elaine became a complex and brutal garda investigation. A meticulous investigation would lead them to one of the country's most disturbing and shocking cases, and to one of the most high-profile trials in Irish history.</p><p>In this episode of Lines of Enquiry John Sweetman revisits a chilling murder that brought a dark subculture of violent sadomasochism into public consciousness.</p><p>Presented by John Sweetman</p><p> Created by Darren Cleary</p><p> Episode Written by Anna Priestland</p><p> Script Edited by Darren Cleary</p><p> Produced by Siobhan Walsh</p><p> Produced by Siobhán Maguire</p><p> Executive Produced by Eoin Brennan</p><p> Executive Produced by Ruth Fitzsimons</p><p> Sound Design and Editing by Neil Kavanagh</p><p> Audio Editing Support by Ed Smith</p><p> Marketing Support by Laura Bracken and Róisín Reilly</p><p> Social Support by Mark Hayes and Robyn Ree</p><p> Artwork and Graphics by Eric Rowntree</p>