A year after surviving a brutal stabbing, Huw (Jason Watkins) believes he has escaped the psychological grip of serial killer Patrick (Robson Green), now imprisoned for his crimes. But Patrick is not finished. From behind bars, he begins a new game - one that reaches deep into Huw’s family, dismantling his moral compass and forcing him toward an unthinkable choice: to stop Patrick for good, Huw may have to become a killer himself.
