When DI Ruth Calder (Ashley Jensen) arrives at the start of Shetland season 8, one thing is very clear: she isn't there because she wants to be.
Calder has been working a case in London where a police informant has been brutally murdered, and the only witness, Ellen Quinn (Maisie Norma Seaton) has fled the scene. It turns out that Ellen is originally from Shetland, and appears to have returned there to hide out while the heat dies down, so Calder is dispatched to Shetland to find her.
