Floundering, their suspicions turn towards one of their own, Sabine's "psychopathic" son Conall (Dónall Ó Héalai), who's forbidden from working the case. However, he might have a way around that.

Barry's co-worker Conall Ó Súilleabháin, played by Dónall Ó Héalai, soon discovers the body is his mother, who has been missing for the last 15 years. Because of his personal connection to ...