The hunt for Tui will lead Robin and her police colleague Al Parker (David Wenham) in many directions and to numerous suspects, including an Austrian folk-dancing teacher with a pedophile record and Tui's father, a man filled with rage who is even more menacing when he seems calm.
In another of its bleak ads, a young girl's dog bites a man who has been stalking her he seems a particularly menacing figure in the world of Japanese advertising.
Judge Adrian Smith said Khosravi was a well-educated man from a "decent, supportive family" who turned "violent and frighteningly menacing" during the attack.