Part Four - Shout: Whilst Rawton and Cork are visiting the scene of the latest attack, Cork is doubtful that the perpetrator is the same man that they are looking for, as there is no bag over the victim's head, and her hands haven't been tied. Meanwhile, Spears is fruitlessly searching for her missing friend Eddie. She fears for his safety when Cork hands in his phone, claiming to have found it. As Singh propounds to Cork and Rawton that their prey might be getting bolder, Rawton opens a package containing torn knickers and a rose petal. Horrified, she explains she received the same from an old boyfriend a couple of years ago who later committed suicide. Cork then proposes that the team set a trap.