BBC续订《警与囚》第二季，故事设定在一所全女子监狱。

Award-winningcrimewriterAnnCleeves’bestsellingdetectiveseriesreturnsforafifthseasonasDIJimmyPerezfacesacompellingnewsinglemystery.AhumanhandwashesuponaShetlandbeach.Afewhourslater,morebodypartsarediscoveredinahold-allthathasbeendumpedatsea.ThevictimisidentifiedasayoungNigerianman,spottedinLerwickafewdaysbefore.Whatwashedoingontheislands?Ininvestigatinghismurder,DIPerezbecomesinvolvedinthesearchforavulnerableyoungwoman,leadinghimtouncoveracomplexnetworkofhumantraffickingacrossScotland’sremoteruralcommunities.

即将拆除的塔楼，只剩下最后15位住户了。一个神秘狙击手nicktime和他的高动力、低噪音步枪，逐个瞄准枪击他们。没人听到枪声，没有任何外来帮助。如果受惊的受害者不能找到这个迷宫般塔楼的逃生之路，他们都将被一个接一个地枪杀。