Karen is put in charge of the case, a case not made easier by the fact that the victim is Jounas's ex-wife, Susanne. Finding no obvious motive for the killing, Karen must dig deep into the islands' history in order to solve the case.
She was a friend of Tom's and they both died on the same night - are their deaths connected and if so, how? As Cathy delves deeper, she uncovers links to the Dark Web and a catalogue of cold cases, realising that those involved each have their own reasons for hiding things from the police.
. When ex-soldier-turned-teacher Jenni Wales sees 15-year-old Destiny's black eye, she's concerned. With social services and the police not taking the threat seriously, Jenni does the only thing she can think of to keep Destiny safe: she takes her.