Paula and James are world's apart. She's a respected teacher, he does odd jobs. The two come together when Paula hires him to get rid of the rats in her basement, leading to a one-night-stand.
Struggling to come to terms with Philip's death, Paula suspects James was involved and enlists the aid of Mac. After Crystal and Morgan fight James goes on the run.
As Mac tries to recover from the attack he continues to probe James' past. Paula faces the possibility that Callum may never recover and she is haunted by the danger James poses.