Shetland – Series 4 (TV) (2018; UK; Colour; 6 x 60m) **** pr. Eric Coulter; d. Lee Haven Jones, Rebecca Gatward; w. David Kane, Louise Ironside, Paul Logue; ph. Ed Moore, Michael Coulter; m. John Lunn. Cast: Douglas Henshall, Alison O’Donnell, Steven Robertson, Mark Bonnar, Julie Graham, Erin Armstrong, Lewis Howden, Stephen Walters, Neve McIntosh, Sean McGinley, Fiona Bell, Allison McKenzie, Amy Lennox, Sophie Stone, Gerard Miller, Eleanor Matsuura, Carolin Stoltz, Arnmundur Bjornsson. Perez (Henshall) and the team are forced to re-open a twenty-three year old cold case when convicted murder, Thomas Malone (Walters), is released from prison. The case concerns teenager Lizzie Kilmuir, who was found strangled to death on a kiln. Upon returning to Shetland, Thomas tries to make amends with Lizzie’s elder sister, Kate (McIntosh). Meanwhile, local journalist Sally McColl (Lennox) attends the Shetland Folk Festival with a group of her friends, but doesn’t return home later that evening. The next day, she is found strangled to death on a kiln, in what looks like a copycat of Lizzie’s murder. Top-class mystery with a bleak, isolated setting adding to the atmosphere. A strong cast – notably Henshall as the dedicated detective and Walters as the psychologically damaged, but misunderstood, convict – deliver earnest performances. Despite the length of the drama there is little flab in the plotting, which winds its way to a satisfying and tense conclusion. Based on the characters created by Ann Cleeves.