When businessman Maxwell Garvie goes missing from his home in May, 1968, the last place police expect to find him is in an underground tunnel beneath one of Aberdeenshire’s most picturesque tourist attractions. But, as the circumstances around his murder begin to unravel, investigators are plunged into a murky underworld of sex, scandal… and deadly secrets.

Murder They Wrote with Laura Whitmore and Iain Stirling is available weekly on BBC Sounds. Subscribe now so you never miss an episode. Email us at [email protected].