As DI Hudson's new investigation unearths serious flaws in the original murder investigation, those who were closest to Tara are forced to explain away credible motives for wanting to kill her. Relationships are strained to breaking and damaging accusations fly when David confronts his brother and sister-in-law over access to his children.

David is the subject of a sensational tabloid story, and struggles to explain things to his children. Tom is confronted by his ex-wife, who demands his help. Last in the series.