+ Souvenirs: When Thomas decides to stop working on active cases, Catherine starts investigating his past which leads her to an unexpected family history. (S1, Ep5) Rating: NU16 6 + Always After: Thomas's suggestion to Catherine about her mother deeply disturbs her. Meanwhile, the team investigates a possible domestic homicide. (S1, Ep6) Rating: NU16 7 + A Safe Place: After the discovery of aluminium residue on a recent victim, Catherine scans crime scene photos to see a neighbouring house under construction. (S1, Ep7) Rating: NU16 8 + Insomnia: A killer uses enhanced hallucinogens in his methods, causing the team to work with the Narcotics Division and Catherine's former lover. (S1, Ep8)