Gibson's investigation leads her to Spector's lair, but there is no sign of Rose Stagg. Increasingly desperate to find Rose, Gibson instructs her team to step up the interviews with Katie, Sally Ann and Paul Spector.
However, it is only when Spector makes a final play to remain in control that Gibson is offered any sort of answers. As Gibson and Spector finally come face-to-face, both have a chance to look in the eyes of their nemesis, and both have their own battles to win.
With Spector under surveillance, Gibson wants to make sure that a solid arrest strategy is put in place so that no evidence is lost and they have the best chance at saving Rose Stagg.
However, Spector is unpredictable, and Gibson is forced to act quickly as her carefully made plans fall apart in front of her eyes.
Gibson reports to Burns that their confrontation in her hotel room may have been witnessed by Paul Spector.
Gibson is further shocked to discover that Spector has been paying visits to one of his surviving victims in hospital. Seizing on the opportunity, Gibson finally locates Spector and puts him under surveillance.
Gibson orders extensive surveillance on Spector's family, believing they will lead them to Paul, whose whereabouts remains unknown. As the search for Rose Stagg becomes ever more desperate with each passing hour, a near miss between Spector and Gibson makes their cat and mouse hunt personal.
As Paul Spector drives Rose Stagg away from her home in the middle of the night, her worst fears are realised when Spector tells her that he knows she went to the police.
It has been ten days since Paul Spector told DSI Stella Gibson that she would never catch him. As Gibson tries in vain to help Spector's surviving victim to remember the identity of her attacker, Spector is forced to deal with the loose ends that he left behind in Belfast.
His return to the city reveals that someone from his past has been helping police with their enquiries, forcing Spector to change his plans with terrifying consequences.