Ann Cleeves' award-winning crime series returns for its fifth season as DI Jimmy Perez faces a compelling new single mystery. A human hand washes up on a Shetland beach, and several hours later, more body parts are discovered in a hold-all that has been dumped at sea. The victim is identified as a young Nigerian man, who was spotted in Lerwick just a few days prior. What was he doing on the islands? As DI Perez investigates his murder, he becomes involved in the search for a vulnerable young woman, leading him to uncover a complex network of human trafficking across Scotland's remote rural communities.