Acclaimed murder-mystery drama Shetland returns for a tenth series as Calder and Tosh are drawn to a remote village following the sinister murder of an elderly woman. As they begin to unravel life in this close-knit community, shocking, long-buried secrets rise to the surface with unexpected consequences for all – including the team.

In the isolated hamlet of Lunniswick, the body of the retired social worker Eadie Tulloch has been out in the elements for a number of days. Suspecting the residents are holding back about their relationships with Eadie, Calder and Tosh begin to unravel a complicated web of lies. Worse still, there's a personal link to the case for one of the team, testing loyalty to the limits.